[lmi-commits] [lmi] master 6f15117 2/2: Update copyright notices

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[lmi-commits] [lmi] master 6f15117 2/2: Update copyright notices

From:	Greg Chicares
Subject:	[lmi-commits] [lmi] master 6f15117 2/2: Update copyright notices
Date:	Fri, 5 Jan 2018 13:12:54 -0500 (EST)
branch: master
commit 6f15117d1caaa5a1b70c6f72f2ced6df60486e10
Author: Gregory W. Chicares <address@hidden>
Commit: Gregory W. Chicares <address@hidden>

    Update copyright notices
---
 COPYING.html                    | 2 +-
 ChangeLog                       | 2 +-
 DefectLog                       | 2 +-
 GNUmakefile                     | 6 +++---
 INSTALL                         | 2 +-
 Makefile.am                     | 2 +-
 README                          | 2 +-
 README.auto                     | 2 +-
 README.schroot                  | 2 +-
 about_dialog.cpp                | 2 +-
 about_dialog.hpp                | 2 +-
 account_value.hpp               | 2 +-
 account_value_test.cpp          | 2 +-
 accountvalue.cpp                | 2 +-
 acinclude.m4                    | 2 +-
 actuarial_table.cpp             | 2 +-
 actuarial_table.hpp             | 2 +-
 actuarial_table_test.cpp        | 2 +-
 alert.cpp                       | 2 +-
 alert.hpp                       | 2 +-
 alert_cgi.cpp                   | 2 +-
 alert_cli.cpp                   | 2 +-
 alert_test.cpp                  | 2 +-
 alert_wx.cpp                    | 2 +-
 antediluvian_stubs.cpp          | 2 +-
 any_entity.hpp                  | 2 +-
 any_member.hpp                  | 2 +-
 any_member_test.cpp             | 2 +-
 assert_lmi.hpp                  | 2 +-
 assert_lmi_test.cpp             | 2 +-
 authenticity.cpp                | 2 +-
 authenticity.hpp                | 2 +-
 authenticity_test.cpp           | 2 +-
 autodependency.make             | 2 +-
 autogen.sh                      | 2 +-
 basic_values.hpp                | 2 +-
 basicvalues.cpp                 | 2 +-
 bcc_5_5_1.make                  | 2 +-
 bcc_ar.cpp                      | 2 +-
 bcc_cc.cpp                      | 2 +-
 bcc_ld.cpp                      | 2 +-
 bcc_rc.cpp                      | 2 +-
 boost_regex.hpp                 | 2 +-
 bourn_cast.hpp                  | 2 +-
 bourn_cast_test.cpp             | 2 +-
 cache_file_reads.hpp            | 2 +-
 cache_file_reads_test.cpp       | 2 +-
 calendar_date.cpp               | 2 +-
 calendar_date.hpp               | 2 +-
 calendar_date_test.cpp          | 2 +-
 callback.hpp                    | 2 +-
 callback_test.cpp               | 2 +-
 catch_exceptions.hpp            | 2 +-
 ce_product_name.cpp             | 2 +-
 ce_product_name.hpp             | 2 +-
 ce_skin_name.cpp                | 2 +-
 ce_skin_name.hpp                | 2 +-
 cell.rnc                        | 2 +-
 cell.xsd                        | 2 +-
 cell_07.rnc                     | 2 +-
 cell_07.xsd                     | 2 +-
 census_document.cpp             | 2 +-
 census_document.hpp             | 2 +-
 census_view.cpp                 | 2 +-
 census_view.hpp                 | 2 +-
 check_git_setup.sh              | 2 +-
 check_std_names.sed             | 2 +-
 comma_punct.hpp                 | 2 +-
 comma_punct_test.cpp            | 2 +-
 commutation_functions.cpp       | 2 +-
 commutation_functions.hpp       | 2 +-
 commutation_functions_test.cpp  | 2 +-
 como.make                       | 2 +-
 config.hpp                      | 2 +-
 config_bc551.hpp                | 2 +-
 config_como_mingw.hpp           | 2 +-
 config_ming323.hpp              | 2 +-
 configurable_settings.cpp       | 2 +-
 configurable_settings.hpp       | 2 +-
 configurable_settings_test.cpp  | 2 +-
 configuration.make              | 2 +-
 configure.ac                    | 2 +-
 contains.hpp                    | 2 +-
 contains_test.cpp               | 2 +-
 cpp_main.cpp                    | 2 +-
 crc32.cpp                       | 2 +-
 crc32.hpp                       | 2 +-
 crc32_test.cpp                  | 2 +-
 currency.hpp                    | 2 +-
 currency_test.cpp               | 2 +-
 custom_io_0.cpp                 | 2 +-
 custom_io_0.hpp                 | 2 +-
 custom_io_1.cpp                 | 2 +-
 custom_io_1.hpp                 | 2 +-
 data_directory.cpp              | 2 +-
 data_directory.hpp              | 2 +-
 database.cpp                    | 2 +-
 database.hpp                    | 2 +-
 database_document.cpp           | 2 +-
 database_document.hpp           | 2 +-
 database_view.cpp               | 2 +-
 database_view.hpp               | 2 +-
 database_view_editor.cpp        | 2 +-
 database_view_editor.hpp        | 2 +-
 datum_base.cpp                  | 2 +-
 datum_base.hpp                  | 2 +-
 datum_boolean.cpp               | 2 +-
 datum_boolean.hpp               | 2 +-
 datum_sequence.cpp              | 2 +-
 datum_sequence.hpp              | 2 +-
 datum_string.cpp                | 2 +-
 datum_string.hpp                | 2 +-
 dbdict.cpp                      | 2 +-
 dbdict.hpp                      | 2 +-
 dbindex.hpp                     | 2 +-
 dbnames.cpp                     | 2 +-
 dbnames.hpp                     | 2 +-
 dbnames.xpp                     | 2 +-
 dbvalue.cpp                     | 2 +-
 dbvalue.hpp                     | 2 +-
 death_benefits.cpp              | 2 +-
 death_benefits.hpp              | 2 +-
 default_view.cpp                | 2 +-
 default_view.hpp                | 2 +-
 deserialize_cast.hpp            | 2 +-
 diagnostics.sed                 | 2 +-
 docmanager_ex.cpp               | 2 +-
 docmanager_ex.hpp               | 2 +-
 edit_mvc_docview_parameters.hpp | 2 +-
 elapsed_time.cpp                | 2 +-
 emit_ledger.cpp                 | 2 +-
 emit_ledger.hpp                 | 2 +-
 errors.sed                      | 2 +-
 exit_codes.hpp                  | 2 +-
 expression_template_0_test.cpp  | 2 +-
 facets.cpp                      | 2 +-
 facets.hpp                      | 2 +-
 faq.html                        | 4 ++--
 fenv_guard.cpp                  | 2 +-
 fenv_guard.hpp                  | 2 +-
 fenv_lmi.cpp                    | 2 +-
 fenv_lmi.hpp                    | 2 +-
 fenv_lmi_test.cpp               | 2 +-
 fenv_lmi_x86.hpp                | 2 +-
 file_command.cpp                | 2 +-
 file_command.hpp                | 2 +-
 file_command_cgi.cpp            | 2 +-
 file_command_cli.cpp            | 2 +-
 file_command_test.cpp           | 2 +-
 file_command_wx.cpp             | 2 +-
 financial.cpp                   | 2 +-
 financial.hpp                   | 2 +-
 financial_test.cpp              | 2 +-
 fo_common.xsl                   | 2 +-
 force_linking.hpp               | 2 +-
 fund_data.cpp                   | 2 +-
 fund_data.hpp                   | 2 +-
 generate_passkey.cpp            | 2 +-
 generate_product_files.cpp      | 2 +-
 getopt.cpp                      | 2 +-
 getopt.hpp                      | 2 +-
 getopt_test.cpp                 | 2 +-
 global_settings.cpp             | 2 +-
 global_settings.hpp             | 2 +-
 global_settings_test.cpp        | 2 +-
 gpt.xrc                         | 2 +-
 gpt_commutation_functions.cpp   | 2 +-
 gpt_commutation_functions.hpp   | 2 +-
 gpt_document.cpp                | 2 +-
 gpt_document.hpp                | 2 +-
 gpt_input.cpp                   | 2 +-
 gpt_input.hpp                   | 2 +-
 gpt_server.cpp                  | 2 +-
 gpt_server.hpp                  | 2 +-
 gpt_specamt.cpp                 | 2 +-
 gpt_specamt.hpp                 | 2 +-
 gpt_state.cpp                   | 2 +-
 gpt_state.hpp                   | 2 +-
 gpt_test.cpp                    | 2 +-
 gpt_view.cpp                    | 2 +-
 gpt_view.hpp                    | 2 +-
 gpt_xml_document.cpp            | 2 +-
 gpt_xml_document.hpp            | 2 +-
 group_quote_pdf_gen.cpp         | 2 +-
 group_quote_pdf_gen.hpp         | 2 +-
 group_quote_pdf_gen_wx.cpp      | 2 +-
 group_tutorial.html             | 4 ++--
 group_values.cpp                | 2 +-
 group_values.hpp                | 2 +-
 handle_exceptions.hpp           | 2 +-
 handle_exceptions_test.cpp      | 2 +-
 hooks/commit-msg                | 2 +-
 hooks/pre-commit                | 2 +-
 icon_monger.cpp                 | 2 +-
 icon_monger.hpp                 | 2 +-
 ieee754.hpp                     | 2 +-
 ieee754_test.cpp                | 2 +-
 ihs_acctval.cpp                 | 2 +-
 ihs_avdebug.cpp                 | 2 +-
 ihs_avmly.cpp                   | 2 +-
 ihs_avsolve.cpp                 | 2 +-
 ihs_avstrtgy.cpp                | 2 +-
 ihs_basicval.cpp                | 2 +-
 ihs_crc_comp.cpp                | 2 +-
 ihs_irc7702.cpp                 | 2 +-
 ihs_irc7702.hpp                 | 2 +-
 ihs_irc7702a.cpp                | 2 +-
 ihs_irc7702a.hpp                | 2 +-
 ihs_mortal.cpp                  | 2 +-
 ihs_server7702.cpp              | 2 +-
 ihs_server7702.hpp              | 2 +-
 ihs_x_type.hpp                  | 2 +-
 illustration_document.cpp       | 2 +-
 illustration_document.hpp       | 2 +-
 illustration_reg.xsl            | 2 +-
 illustration_view.cpp           | 2 +-
 illustration_view.hpp           | 2 +-
 illustrator.cpp                 | 2 +-
 illustrator.hpp                 | 2 +-
 individual_tutorial.html        | 4 ++--
 input.cpp                       | 2 +-
 input.hpp                       | 2 +-
 input_harmonization.cpp         | 2 +-
 input_realization.cpp           | 2 +-
 input_sequence.cpp              | 2 +-
 input_sequence.hpp              | 2 +-
 input_sequence_aux.cpp          | 2 +-
 input_sequence_aux.hpp          | 2 +-
 input_sequence_entry.cpp        | 2 +-
 input_sequence_entry.hpp        | 2 +-
 input_sequence_interval.hpp     | 2 +-
 input_sequence_parser.cpp       | 2 +-
 input_sequence_parser.hpp       | 2 +-
 input_sequence_test.cpp         | 2 +-
 input_test.cpp                  | 2 +-
 input_xml_io.cpp                | 2 +-
 install_como.sh                 | 2 +-
 install_cygwin.bat              | 2 +-
 install_libxml2_libxslt.make    | 2 +-
 install_mingw.make              | 2 +-
 install_miscellanea.make        | 2 +-
 install_msw.sh                  | 2 +-
 install_wx.make                 | 2 +-
 install_wxpdfdoc.make           | 2 +-
 interest_rates.cpp              | 2 +-
 interest_rates.hpp              | 2 +-
 irc7702a_test.cpp               | 2 +-
 istream_to_string.hpp           | 2 +-
 istream_to_string_test.cpp      | 2 +-
 ledger.cpp                      | 2 +-
 ledger.hpp                      | 2 +-
 ledger_base.cpp                 | 2 +-
 ledger_base.hpp                 | 2 +-
 ledger_invariant.cpp            | 2 +-
 ledger_invariant.hpp            | 2 +-
 ledger_text_formats.cpp         | 2 +-
 ledger_text_formats.hpp         | 2 +-
 ledger_variant.cpp              | 2 +-
 ledger_variant.hpp              | 2 +-
 ledger_xml_io.cpp               | 2 +-
 ledger_xsl.cpp                  | 2 +-
 ledger_xsl.hpp                  | 2 +-
 ledgervalues.cpp                | 2 +-
 ledgervalues.hpp                | 2 +-
 license.cpp                     | 4 ++--
 license.hpp                     | 2 +-
 lmi.cpp                         | 2 +-
 lmi.hpp                         | 2 +-
 lmi_msw_res.rc                  | 2 +-
 loads.cpp                       | 2 +-
 loads.hpp                       | 2 +-
 loads_impl.hpp                  | 2 +-
 loads_test.cpp                  | 2 +-
 local_options.sh                | 2 +-
 main_cgi.cpp                    | 2 +-
 main_cli.cpp                    | 2 +-
 main_common.cpp                 | 2 +-
 main_common.hpp                 | 2 +-
 main_common_non_wx.cpp          | 2 +-
 main_wx.cpp                     | 2 +-
 main_wx_test.cpp                | 2 +-
 map_lookup.hpp                  | 2 +-
 map_lookup_test.cpp             | 2 +-
 materially_equal.hpp            | 2 +-
 materially_equal_test.cpp       | 2 +-
 math_functors.hpp               | 2 +-
 math_functors_test.cpp          | 2 +-
 mc_enum.cpp                     | 2 +-
 mc_enum.hpp                     | 2 +-
 mc_enum.tpp                     | 2 +-
 mc_enum_aux.hpp                 | 2 +-
 mc_enum_fwd.hpp                 | 2 +-
 mc_enum_metadata.hpp            | 2 +-
 mc_enum_test.cpp                | 2 +-
 mc_enum_test_aux.cpp            | 2 +-
 mc_enum_test_aux.hpp            | 2 +-
 mc_enum_test_aux_enums.hpp      | 2 +-
 mc_enum_type_enums.hpp          | 2 +-
 mc_enum_types.cpp               | 2 +-
 mc_enum_types.hpp               | 2 +-
 mc_enum_types.xpp               | 2 +-
 mc_enum_types_aux.cpp           | 2 +-
 mc_enum_types_aux.hpp           | 2 +-
 md5.cpp                         | 2 +-
 md5.hpp                         | 2 +-
 mec.xrc                         | 2 +-
 mec_document.cpp                | 2 +-
 mec_document.hpp                | 2 +-
 mec_input.cpp                   | 2 +-
 mec_input.hpp                   | 2 +-
 mec_server.cpp                  | 2 +-
 mec_server.hpp                  | 2 +-
 mec_state.cpp                   | 2 +-
 mec_state.hpp                   | 2 +-
 mec_view.cpp                    | 2 +-
 mec_view.hpp                    | 2 +-
 mec_xml_document.cpp            | 2 +-
 mec_xml_document.hpp            | 2 +-
 menu_commands.html              | 4 ++--
 menus.xrc                       | 2 +-
 miscellany.cpp                  | 2 +-
 miscellany.hpp                  | 2 +-
 miscellany_test.cpp             | 2 +-
 mortality_rates.cpp             | 2 +-
 mortality_rates.hpp             | 2 +-
 mortality_rates_fetch.cpp       | 2 +-
 mortality_rates_test.cpp        | 2 +-
 msw_common.make                 | 2 +-
 msw_cygwin.make                 | 2 +-
 msw_generic.make                | 2 +-
 msw_workarounds.cpp             | 2 +-
 msw_workarounds.hpp             | 2 +-
 multidimgrid_any.cpp            | 2 +-
 multidimgrid_any.hpp            | 2 +-
 multidimgrid_safe.hpp           | 2 +-
 multidimgrid_safe.tpp           | 2 +-
 multidimgrid_tools.cpp          | 2 +-
 multidimgrid_tools.hpp          | 2 +-
 multiple_cell_document.cpp      | 2 +-
 multiple_cell_document.hpp      | 2 +-
 multiple_cell_document.rnc      | 2 +-
 multiple_cell_document.xsd      | 2 +-
 multiple_cell_document_01.rnc   | 2 +-
 multiple_cell_document_01.xsd   | 2 +-
 mvc_controller.cpp              | 2 +-
 mvc_controller.hpp              | 2 +-
 mvc_controller.tpp              | 2 +-
 mvc_model.cpp                   | 2 +-
 mvc_model.hpp                   | 2 +-
 mvc_view.cpp                    | 2 +-
 mvc_view.hpp                    | 2 +-
 my_db.cpp                       | 2 +-
 my_fund.cpp                     | 2 +-
 my_prod.cpp                     | 2 +-
 my_proem.cpp                    | 2 +-
 my_proem.hpp                    | 2 +-
 my_rnd.cpp                      | 2 +-
 my_test_coding_rules.cpp        | 2 +-
 my_tier.cpp                     | 2 +-
 name_value_pairs.cpp            | 2 +-
 name_value_pairs.hpp            | 2 +-
 name_value_pairs_test.cpp       | 2 +-
 nasd.xsl                        | 2 +-
 ncnnnpnn.hpp                    | 2 +-
 ncnnnpnn_test.cpp               | 2 +-
 null_stream.cpp                 | 2 +-
 null_stream.hpp                 | 2 +-
 numeric_io_cast.hpp             | 2 +-
 numeric_io_test.cpp             | 2 +-
 numeric_io_traits.hpp           | 2 +-
 objects.make                    | 2 +-
 oecumenic_enumerations.hpp      | 2 +-
 outlay.cpp                      | 2 +-
 outlay.hpp                      | 2 +-
 pasting_to_a_census.html        | 4 ++--
 path_utility.cpp                | 2 +-
 path_utility.hpp                | 2 +-
 path_utility_test.cpp           | 2 +-
 pchfile.hpp                     | 2 +-
 pchfile_wx.hpp                  | 2 +-
 pchlist.hpp                     | 2 +-
 pchlist_wx.hpp                  | 2 +-
 platform_dependent.hpp          | 2 +-
 policy_document.cpp             | 2 +-
 policy_document.hpp             | 2 +-
 policy_view.cpp                 | 2 +-
 policy_view.hpp                 | 2 +-
 policy_view.xrc                 | 2 +-
 posix_fhs.make                  | 2 +-
 preferences_model.cpp           | 2 +-
 preferences_model.hpp           | 2 +-
 preferences_view.cpp            | 2 +-
 preferences_view.hpp            | 2 +-
 preferences_view.xrc            | 2 +-
 premium_tax.cpp                 | 2 +-
 premium_tax.hpp                 | 2 +-
 premium_tax_test.cpp            | 2 +-
 previewframe_ex.cpp             | 2 +-
 previewframe_ex.hpp             | 2 +-
 print_matrix.hpp                | 2 +-
 print_matrix_test.cpp           | 2 +-
 product_data.cpp                | 2 +-
 product_data.hpp                | 2 +-
 product_editor.cpp              | 2 +-
 product_editor.hpp              | 2 +-
 product_file_test.cpp           | 2 +-
 progress_meter.cpp              | 2 +-
 progress_meter.hpp              | 2 +-
 progress_meter_cgi.cpp          | 2 +-
 progress_meter_cli.cpp          | 2 +-
 progress_meter_test.cpp         | 2 +-
 progress_meter_wx.cpp           | 2 +-
 rate_table.cpp                  | 2 +-
 rate_table.hpp                  | 2 +-
 rate_table_test.cpp             | 2 +-
 rate_table_tool.cpp             | 2 +-
 reg_d_group.xsl                 | 2 +-
 reg_d_individual.xsl            | 2 +-
 regex_test.cpp                  | 2 +-
 round_glibc.cpp                 | 2 +-
 round_test.cpp                  | 2 +-
 round_to.hpp                    | 2 +-
 round_to_test.cpp               | 2 +-
 rounding_document.cpp           | 2 +-
 rounding_document.hpp           | 2 +-
 rounding_rules.cpp              | 2 +-
 rounding_rules.hpp              | 2 +-
 rounding_view.cpp               | 2 +-
 rounding_view.hpp               | 2 +-
 rounding_view.xrc               | 2 +-
 rounding_view_editor.cpp        | 2 +-
 rounding_view_editor.hpp        | 2 +-
 rtti_lmi.hpp                    | 2 +-
 rtti_lmi_test.cpp               | 2 +-
 safely_dereference_as.hpp       | 2 +-
 safely_dereference_as_test.cpp  | 2 +-
 sandbox_test.cpp                | 2 +-
 sequence_input.html             | 4 ++--
 sigfpe.cpp                      | 2 +-
 sigfpe.hpp                      | 2 +-
 single_cell_document.cpp        | 2 +-
 single_cell_document.hpp        | 2 +-
 single_cell_document.rnc        | 2 +-
 single_cell_document.xsd        | 2 +-
 single_cell_document_00.xsd     | 2 +-
 single_cell_document_01.rnc     | 2 +-
 single_cell_document_01.xsd     | 2 +-
 single_choice_popup_menu.cpp    | 2 +-
 single_choice_popup_menu.hpp    | 2 +-
 skeleton.cpp                    | 2 +-
 skeleton.hpp                    | 2 +-
 skin.xrc                        | 2 +-
 skin_coli_boli.xrc              | 2 +-
 skin_group_carveout.xrc         | 2 +-
 skin_single_premium.xrc         | 2 +-
 snprintf_test.cpp               | 2 +-
 so_attributes.hpp               | 2 +-
 solve.cpp                       | 2 +-
 sort_cell_subelements.xsl       | 2 +-
 stl_extensions.hpp              | 2 +-
 stratified_algorithms.cpp       | 2 +-
 stratified_algorithms.hpp       | 2 +-
 stratified_algorithms_test.cpp  | 2 +-
 stratified_charges.cpp          | 2 +-
 stratified_charges.hpp          | 2 +-
 stratified_charges.xpp          | 2 +-
 stream_cast.hpp                 | 2 +-
 stream_cast_test.cpp            | 2 +-
 surrchg_rates.cpp               | 2 +-
 surrchg_rates.hpp               | 2 +-
 system_command.cpp              | 2 +-
 system_command.hpp              | 2 +-
 system_command_non_wx.cpp       | 2 +-
 system_command_test.cpp         | 2 +-
 system_command_wx.cpp           | 2 +-
 test_coding_rules.cpp           | 2 +-
 test_coding_rules_test.sh       | 2 +-
 test_main.cpp                   | 2 +-
 test_schemata.sh                | 2 +-
 test_tools.hpp                  | 2 +-
 test_tools_test.cpp             | 2 +-
 text_doc.cpp                    | 2 +-
 text_doc.hpp                    | 2 +-
 text_to_html_strings.sed        | 2 +-
 text_to_strings.sed             | 2 +-
 text_view.cpp                   | 2 +-
 text_view.hpp                   | 2 +-
 tier_document.cpp               | 2 +-
 tier_document.hpp               | 2 +-
 tier_view.cpp                   | 2 +-
 tier_view.hpp                   | 2 +-
 tier_view_editor.cpp            | 2 +-
 tier_view_editor.hpp            | 2 +-
 timer.cpp                       | 2 +-
 timer.hpp                       | 2 +-
 timer_test.cpp                  | 2 +-
 tn_range.hpp                    | 2 +-
 tn_range.tpp                    | 2 +-
 tn_range_fwd.hpp                | 2 +-
 tn_range_test.cpp               | 2 +-
 tn_range_test_aux.cpp           | 2 +-
 tn_range_test_aux.hpp           | 2 +-
 tn_range_type_trammels.hpp      | 2 +-
 tn_range_types.cpp              | 2 +-
 tn_range_types.hpp              | 2 +-
 toolbar.xrc                     | 2 +-
 transferor.cpp                  | 2 +-
 transferor.hpp                  | 2 +-
 types.rnc                       | 2 +-
 types.xsd                       | 2 +-
 types_07.rnc                    | 2 +-
 types_07.xsd                    | 2 +-
 user_manual.html                | 4 ++--
 value_cast.hpp                  | 2 +-
 value_cast_test.cpp             | 2 +-
 vector_test.cpp                 | 2 +-
 version.hpp                     | 2 +-
 view_ex.cpp                     | 2 +-
 view_ex.hpp                     | 2 +-
 view_ex.tpp                     | 2 +-
 workhorse.make                  | 2 +-
 wx_checks.cpp                   | 2 +-
 wx_checks.hpp                   | 2 +-
 wx_new.cpp                      | 2 +-
 wx_new.hpp                      | 2 +-
 wx_new_test.cpp                 | 2 +-
 wx_table_generator.cpp          | 2 +-
 wx_table_generator.hpp          | 2 +-
 wx_test_about_version.cpp       | 2 +-
 wx_test_benchmark_census.cpp    | 2 +-
 wx_test_calculation_summary.cpp | 2 +-
 wx_test_case.hpp                | 2 +-
 wx_test_config_settings.cpp     | 2 +-
 wx_test_create_open.cpp         | 2 +-
 wx_test_date.hpp                | 2 +-
 wx_test_default_input.cpp       | 2 +-
 wx_test_default_update.cpp      | 2 +-
 wx_test_document.hpp            | 2 +-
 wx_test_expiry_dates.cpp        | 2 +-
 wx_test_input_sequences.cpp     | 2 +-
 wx_test_input_validation.cpp    | 2 +-
 wx_test_log_errors.cpp          | 2 +-
 wx_test_new.hpp                 | 2 +-
 wx_test_output.hpp              | 2 +-
 wx_test_output_pdf.hpp          | 2 +-
 wx_test_paste_census.cpp        | 2 +-
 wx_test_pdf_create.cpp          | 2 +-
 wx_test_statusbar.hpp           | 2 +-
 wx_test_validate_output.cpp     | 2 +-
 wx_utility.cpp                  | 2 +-
 wx_utility.hpp                  | 2 +-
 wx_workarounds.hpp              | 2 +-
 xml_lmi.cpp                     | 2 +-
 xml_lmi.hpp                     | 2 +-
 xml_lmi_fwd.hpp                 | 2 +-
 xml_serializable.hpp            | 2 +-
 xml_serializable.tpp            | 2 +-
 xml_serialize.hpp               | 2 +-
 xml_serialize_test.cpp          | 2 +-
 xml_xslt_wrapp.cpp              | 2 +-
 xrc.rnc                         | 2 +-
 yare_input.cpp                  | 2 +-
 yare_input.hpp                  | 2 +-
 zero.hpp                        | 2 +-
 zero_test.cpp                   | 2 +-
 565 files changed, 575 insertions(+), 575 deletions(-)

diff --git a/COPYING.html b/COPYING.html
index e1a7f78..a879e38 100644
--- a/COPYING.html
+++ b/COPYING.html
@@ -23,7 +23,7 @@ have been made:
   literal copyright symbol replaced by '&copy;'
 
 These markup modifications are
-  Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares
+  Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares
 and licensed under the same terms as the original. This boilerplate
 has been added:
 
diff --git a/ChangeLog b/ChangeLog
index 64b2d91..eb31657 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,7 +2,7 @@
 //
 // ChangeLog for "Let me illustrate...". See 'MAINTENANCE' after license.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/DefectLog b/DefectLog
index c27ef94..409c7c1 100644
--- a/DefectLog
+++ b/DefectLog
@@ -1,6 +1,6 @@
 // DefectLog for "Let me illustrate...". See 'MAINTENANCE' after license.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/GNUmakefile b/GNUmakefile
index 6d296d5..6953d29 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,6 +1,6 @@
 # Top-level lmi makefile.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -365,8 +365,8 @@ check_concinnity: source_clean custom_tools
 # either in the last days of the old year or the first days of the
 # new, so they can't be derived dynamically from the current date.
 
-old_year := 2016
-new_year := 2017
+old_year := 2017
+new_year := 2018
 
 backup_directory := saved_$(old_year)
 
diff --git a/INSTALL b/INSTALL
index 12a2d77..5d93861 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,6 +1,6 @@
 // INSTALL for "Let me illustrate...".
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/Makefile.am b/Makefile.am
index 441aaa4..aad985a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,7 +1,7 @@
 # Master automake makefile, run automake to generate Makefile.am from it (this
 # is also done by autogen.sh script)
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Vadim Zeitlin.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Vadim Zeitlin.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/README b/README
index 027f6a9..206aec7 100644
--- a/README
+++ b/README
@@ -1,6 +1,6 @@
 // README for "Let me illustrate...". Files listed below are:
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/README.auto b/README.auto
index 32ce40b..f979ab8 100644
--- a/README.auto
+++ b/README.auto
@@ -1,6 +1,6 @@
 // README.auto for "Let me illustrate...".
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Vadim Zeitlin.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Vadim Zeitlin.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/README.schroot b/README.schroot
index a20bdc1..4be94ab 100644
--- a/README.schroot
+++ b/README.schroot
@@ -1,6 +1,6 @@
 # Create a chroot for cross-building "Let me illustrate...".
 #
-# Copyright (C) 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/about_dialog.cpp b/about_dialog.cpp
index 9d9c81e..4902bb8 100644
--- a/about_dialog.cpp
+++ b/about_dialog.cpp
@@ -1,6 +1,6 @@
 // State application's purpose and show GPL notices.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/about_dialog.hpp b/about_dialog.hpp
index 6941bf8..1da945b 100644
--- a/about_dialog.hpp
+++ b/about_dialog.hpp
@@ -1,6 +1,6 @@
 // State application's purpose and show GPL notices.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/account_value.hpp b/account_value.hpp
index 1ef450f..13206e7 100644
--- a/account_value.hpp
+++ b/account_value.hpp
@@ -1,6 +1,6 @@
 // Account value.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/account_value_test.cpp b/account_value_test.cpp
index cbac144..08519c4 100644
--- a/account_value_test.cpp
+++ b/account_value_test.cpp
@@ -1,6 +1,6 @@
 // Account value--unit test.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/accountvalue.cpp b/accountvalue.cpp
index 50d0ac3..0db43c4 100644
--- a/accountvalue.cpp
+++ b/accountvalue.cpp
@@ -1,6 +1,6 @@
 // Account value.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/acinclude.m4 b/acinclude.m4
index 62afc7e..0c8ffe2 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1,6 +1,6 @@
 dnl configure.ac script for lmi, process with autoconf to create configure
 dnl
-dnl Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Vadim 
Zeitlin.
+dnl Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Vadim Zeitlin.
 dnl
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License version 2 as
diff --git a/actuarial_table.cpp b/actuarial_table.cpp
index eeb29bd..63b8ff9 100644
--- a/actuarial_table.cpp
+++ b/actuarial_table.cpp
@@ -1,6 +1,6 @@
 // Actuarial tables from SOA database.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/actuarial_table.hpp b/actuarial_table.hpp
index 1a34cce..a03a88b 100644
--- a/actuarial_table.hpp
+++ b/actuarial_table.hpp
@@ -1,6 +1,6 @@
 // Actuarial tables from SOA database.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/actuarial_table_test.cpp b/actuarial_table_test.cpp
index e8f4ae5..6b309e2 100644
--- a/actuarial_table_test.cpp
+++ b/actuarial_table_test.cpp
@@ -1,6 +1,6 @@
 // Actuarial tables from SOA database--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert.cpp b/alert.cpp
index 8e5783c..a0ab3ed 100644
--- a/alert.cpp
+++ b/alert.cpp
@@ -1,6 +1,6 @@
 // Alert messages.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert.hpp b/alert.hpp
index 7ad9bc1..114d494 100644
--- a/alert.hpp
+++ b/alert.hpp
@@ -1,6 +1,6 @@
 // Alert messages.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert_cgi.cpp b/alert_cgi.cpp
index 2d5ceb1..a2f4dc0 100644
--- a/alert_cgi.cpp
+++ b/alert_cgi.cpp
@@ -1,6 +1,6 @@
 // Alert messages for cgi-bin interface.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert_cli.cpp b/alert_cli.cpp
index 1724ebf..5a6cad1 100644
--- a/alert_cli.cpp
+++ b/alert_cli.cpp
@@ -1,6 +1,6 @@
 // Alert messages for command-line interface.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert_test.cpp b/alert_test.cpp
index 45de168..120bbde 100644
--- a/alert_test.cpp
+++ b/alert_test.cpp
@@ -1,6 +1,6 @@
 // Alert messages--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/alert_wx.cpp b/alert_wx.cpp
index a9605e8..681239b 100644
--- a/alert_wx.cpp
+++ b/alert_wx.cpp
@@ -1,6 +1,6 @@
 // Alert messages for wx interface.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/antediluvian_stubs.cpp b/antediluvian_stubs.cpp
index 949889e..b92ea5e 100644
--- a/antediluvian_stubs.cpp
+++ b/antediluvian_stubs.cpp
@@ -1,6 +1,6 @@
 // Stubs for the antediluvian branch.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/any_entity.hpp b/any_entity.hpp
index dba21e8..7c91546 100644
--- a/any_entity.hpp
+++ b/any_entity.hpp
@@ -1,6 +1,6 @@
 // Symbolic member names: base class.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/any_member.hpp b/any_member.hpp
index c8200cc..d0a3130 100644
--- a/any_member.hpp
+++ b/any_member.hpp
@@ -1,6 +1,6 @@
 // Symbolic member names.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/any_member_test.cpp b/any_member_test.cpp
index b233caa..786c102 100644
--- a/any_member_test.cpp
+++ b/any_member_test.cpp
@@ -1,6 +1,6 @@
 // Symbolic member names--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/assert_lmi.hpp b/assert_lmi.hpp
index 8eff018..7f852a8 100644
--- a/assert_lmi.hpp
+++ b/assert_lmi.hpp
@@ -1,6 +1,6 @@
 // Exception-throwing macro for lightweight assertions.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/assert_lmi_test.cpp b/assert_lmi_test.cpp
index 9d4f672..3395c3a 100644
--- a/assert_lmi_test.cpp
+++ b/assert_lmi_test.cpp
@@ -1,6 +1,6 @@
 // Exception-throwing macro for lightweight assertions--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/authenticity.cpp b/authenticity.cpp
index d31309e..1ad2c8d 100644
--- a/authenticity.cpp
+++ b/authenticity.cpp
@@ -1,6 +1,6 @@
 // Permit running the system iff data files and date are valid.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/authenticity.hpp b/authenticity.hpp
index 5099fc5..6af5a8a 100644
--- a/authenticity.hpp
+++ b/authenticity.hpp
@@ -1,6 +1,6 @@
 // Permit running the system iff data files and date are valid.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/authenticity_test.cpp b/authenticity_test.cpp
index 3909e1d..5220ab2 100644
--- a/authenticity_test.cpp
+++ b/authenticity_test.cpp
@@ -1,6 +1,6 @@
 // Data-file and date validation--unit test.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/autodependency.make b/autodependency.make
index 7bef4a3..beaa437 100644
--- a/autodependency.make
+++ b/autodependency.make
@@ -1,6 +1,6 @@
 # Makefile: automatic dependencies.
 #
-# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/autogen.sh b/autogen.sh
index 85c31f7..030d827 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -4,7 +4,7 @@
 # sources from a version control system: this script creates all generated
 # files which are needed for the build but not stored under version control.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Vadim Zeitlin.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Vadim Zeitlin.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/basic_values.hpp b/basic_values.hpp
index 6921e95..62860da 100644
--- a/basic_values.hpp
+++ b/basic_values.hpp
@@ -1,6 +1,6 @@
 // Rates and unprojected values.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/basicvalues.cpp b/basicvalues.cpp
index 9ca8a83..e844e37 100644
--- a/basicvalues.cpp
+++ b/basicvalues.cpp
@@ -1,6 +1,6 @@
 // Basic values.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bcc_5_5_1.make b/bcc_5_5_1.make
index 6f43508..ed10e3c 100644
--- a/bcc_5_5_1.make
+++ b/bcc_5_5_1.make
@@ -1,6 +1,6 @@
 # Limited support for a particular non-free compiler.
 
-# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/bcc_ar.cpp b/bcc_ar.cpp
index 6d24be5..789513c 100644
--- a/bcc_ar.cpp
+++ b/bcc_ar.cpp
@@ -1,6 +1,6 @@
 // Frontend for borland C++ librarians.
 //
-// Copyright (C) 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bcc_cc.cpp b/bcc_cc.cpp
index 113c253..ccfd79b 100644
--- a/bcc_cc.cpp
+++ b/bcc_cc.cpp
@@ -1,6 +1,6 @@
 // Frontend for borland C++ compilers.
 //
-// Copyright (C) 2001, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bcc_ld.cpp b/bcc_ld.cpp
index c0ce62a..ae71fe3 100644
--- a/bcc_ld.cpp
+++ b/bcc_ld.cpp
@@ -1,6 +1,6 @@
 // Frontend for borland C++ linkers.
 //
-// Copyright (C) 2001, 2003, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2003, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bcc_rc.cpp b/bcc_rc.cpp
index 5a3cf69..38bfb90 100644
--- a/bcc_rc.cpp
+++ b/bcc_rc.cpp
@@ -1,6 +1,6 @@
 // Frontend for borland C++ resource compilers.
 //
-// Copyright (C) 2001, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/boost_regex.hpp b/boost_regex.hpp
index 66204e5..e4afa71 100644
--- a/boost_regex.hpp
+++ b/boost_regex.hpp
@@ -1,6 +1,6 @@
 // Include boost/regex.hpp, guarding it with a pragma.
 //
-// Copyright (C) 2017 Gregory W. Chicares.
+// Copyright (C) 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bourn_cast.hpp b/bourn_cast.hpp
index dda5c46..2fdf260 100644
--- a/bourn_cast.hpp
+++ b/bourn_cast.hpp
@@ -1,6 +1,6 @@
 // Numeric stinted cast, across whose bourn no value is returned.
 //
-// Copyright (C) 2017 Gregory W. Chicares.
+// Copyright (C) 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/bourn_cast_test.cpp b/bourn_cast_test.cpp
index 39d2d40..c99a2c6 100644
--- a/bourn_cast_test.cpp
+++ b/bourn_cast_test.cpp
@@ -1,6 +1,6 @@
 // Numeric stinted cast, across whose bourn no value is returned--unit test.
 //
-// Copyright (C) 2017 Gregory W. Chicares.
+// Copyright (C) 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/cache_file_reads.hpp b/cache_file_reads.hpp
index 3d1ec08..56a88b4 100644
--- a/cache_file_reads.hpp
+++ b/cache_file_reads.hpp
@@ -1,6 +1,6 @@
 // Cache class instances constructed from files.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/cache_file_reads_test.cpp b/cache_file_reads_test.cpp
index 49f9cc8..11f9a1c 100644
--- a/cache_file_reads_test.cpp
+++ b/cache_file_reads_test.cpp
@@ -1,6 +1,6 @@
 // Cache class instances constructed from files--unit test.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/calendar_date.cpp b/calendar_date.cpp
index 9fe5c42..394c24f 100644
--- a/calendar_date.cpp
+++ b/calendar_date.cpp
@@ -1,6 +1,6 @@
 // Calendar dates.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/calendar_date.hpp b/calendar_date.hpp
index 374def4..7ec73d4 100644
--- a/calendar_date.hpp
+++ b/calendar_date.hpp
@@ -1,6 +1,6 @@
 // Calendar dates.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/calendar_date_test.cpp b/calendar_date_test.cpp
index 729502d..5a62e5a 100644
--- a/calendar_date_test.cpp
+++ b/calendar_date_test.cpp
@@ -1,6 +1,6 @@
 // Calendar dates--unit test.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/callback.hpp b/callback.hpp
index 6d7d328..ae660e4 100644
--- a/callback.hpp
+++ b/callback.hpp
@@ -1,6 +1,6 @@
 // Shared-library callbacks.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/callback_test.cpp b/callback_test.cpp
index f83a66e..3165912 100644
--- a/callback_test.cpp
+++ b/callback_test.cpp
@@ -1,6 +1,6 @@
 // Shared-library callbacks: unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/catch_exceptions.hpp b/catch_exceptions.hpp
index 6af7b2c..f8ee388 100644
--- a/catch_exceptions.hpp
+++ b/catch_exceptions.hpp
@@ -1,6 +1,6 @@
 // Unit-test framework based on Beman Dawes's boost library.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ce_product_name.cpp b/ce_product_name.cpp
index b471d6c..ffb55bd 100644
--- a/ce_product_name.cpp
+++ b/ce_product_name.cpp
@@ -1,6 +1,6 @@
 // A value-Constrained Enumeration for product names.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ce_product_name.hpp b/ce_product_name.hpp
index 312ca38..8086e9a 100644
--- a/ce_product_name.hpp
+++ b/ce_product_name.hpp
@@ -1,6 +1,6 @@
 // A value-Constrained Enumeration for product names.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ce_skin_name.cpp b/ce_skin_name.cpp
index 2cb694a..b3d376f 100644
--- a/ce_skin_name.cpp
+++ b/ce_skin_name.cpp
@@ -1,6 +1,6 @@
 // A value-Constrained Enumeration for skin names.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ce_skin_name.hpp b/ce_skin_name.hpp
index c3c17ce..88284bf 100644
--- a/ce_skin_name.hpp
+++ b/ce_skin_name.hpp
@@ -1,6 +1,6 @@
 // A value-Constrained Enumeration for skin names.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/cell.rnc b/cell.rnc
index 135e26c..85bddcd 100644
--- a/cell.rnc
+++ b/cell.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for a single cell (class Input).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/cell.xsd b/cell.xsd
index e7bbf4b..6264e3d 100644
--- a/cell.xsd
+++ b/cell.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for a single cell (class Input).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/cell_07.rnc b/cell_07.rnc
index 8f36693..752d3e7 100644
--- a/cell_07.rnc
+++ b/cell_07.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for a single cell (class Input).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/cell_07.xsd b/cell_07.xsd
index dc6a950..bd55345 100644
--- a/cell_07.xsd
+++ b/cell_07.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for a single cell (class Input).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/census_document.cpp b/census_document.cpp
index 3ef8ae7..3de580d 100644
--- a/census_document.cpp
+++ b/census_document.cpp
@@ -1,6 +1,6 @@
 // Document class for censuses.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/census_document.hpp b/census_document.hpp
index 15c2c5a..9a79912 100644
--- a/census_document.hpp
+++ b/census_document.hpp
@@ -1,6 +1,6 @@
 // Document class for censuses.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/census_view.cpp b/census_view.cpp
index afb7a8d..ea21aa5 100644
--- a/census_view.cpp
+++ b/census_view.cpp
@@ -1,6 +1,6 @@
 // Census manager.
 //
-// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/census_view.hpp b/census_view.hpp
index cbaf644..f961e42 100644
--- a/census_view.hpp
+++ b/census_view.hpp
@@ -1,6 +1,6 @@
 // Census manager.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/check_git_setup.sh b/check_git_setup.sh
index fc98d5c..4e45307 100755
--- a/check_git_setup.sh
+++ b/check_git_setup.sh
@@ -2,7 +2,7 @@
 
 # Ensure sound git configuration.
 
-# Copyright (C) 2017 Gregory W. Chicares.
+# Copyright (C) 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/check_std_names.sed b/check_std_names.sed
index 8b0dc63..d2764de 100644
--- a/check_std_names.sed
+++ b/check_std_names.sed
@@ -1,6 +1,6 @@
 # Check for standard names referenced without 'std::' qualification.
 #
-# Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/comma_punct.hpp b/comma_punct.hpp
index 14ba9a8..cbc135a 100644
--- a/comma_punct.hpp
+++ b/comma_punct.hpp
@@ -1,6 +1,6 @@
 // Punctuate numbers with commas.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/comma_punct_test.cpp b/comma_punct_test.cpp
index 50e7bf2..aef5582 100644
--- a/comma_punct_test.cpp
+++ b/comma_punct_test.cpp
@@ -1,6 +1,6 @@
 // Punctuate numbers with commas: unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/commutation_functions.cpp b/commutation_functions.cpp
index 12142fc..4d2b9cd 100644
--- a/commutation_functions.cpp
+++ b/commutation_functions.cpp
@@ -1,6 +1,6 @@
 // Ordinary- and universal-life commutation functions.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/commutation_functions.hpp b/commutation_functions.hpp
index 403ba57..b2cde3e 100644
--- a/commutation_functions.hpp
+++ b/commutation_functions.hpp
@@ -1,6 +1,6 @@
 // Ordinary- and universal-life commutation functions.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/commutation_functions_test.cpp b/commutation_functions_test.cpp
index bbd48f1..9e67452 100644
--- a/commutation_functions_test.cpp
+++ b/commutation_functions_test.cpp
@@ -1,6 +1,6 @@
 // Ordinary- and universal-life commutation functions--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/como.make b/como.make
index 88e8e8c..4fe23f0 100644
--- a/como.make
+++ b/como.make
@@ -1,6 +1,6 @@
 # Limited support for Comeau C++ 4.3.x under msw only.
 
-# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/config.hpp b/config.hpp
index 5027632..5986372 100644
--- a/config.hpp
+++ b/config.hpp
@@ -1,6 +1,6 @@
 // Configuration.
 //
-// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/config_bc551.hpp b/config_bc551.hpp
index e04ab32..df1c4f8 100644
--- a/config_bc551.hpp
+++ b/config_bc551.hpp
@@ -1,6 +1,6 @@
 // Configuration for borland bcc-5.5.1 .
 //
-// Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/config_como_mingw.hpp b/config_como_mingw.hpp
index b72a224..282d6a0 100644
--- a/config_como_mingw.hpp
+++ b/config_como_mingw.hpp
@@ -1,6 +1,6 @@
 // Configuration for Como with MinGW as the underlying C compiler.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/config_ming323.hpp b/config_ming323.hpp
index a39972e..2d352c3 100644
--- a/config_ming323.hpp
+++ b/config_ming323.hpp
@@ -1,6 +1,6 @@
 // Configuration for MinGW gcc-3.2.3 .
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/configurable_settings.cpp b/configurable_settings.cpp
index c0666f2..99ba440 100644
--- a/configurable_settings.cpp
+++ b/configurable_settings.cpp
@@ -1,6 +1,6 @@
 // Configurable settings.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/configurable_settings.hpp b/configurable_settings.hpp
index 1fcb8a0..99e8642 100644
--- a/configurable_settings.hpp
+++ b/configurable_settings.hpp
@@ -1,6 +1,6 @@
 // Configurable settings.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/configurable_settings_test.cpp b/configurable_settings_test.cpp
index 1de1c19..a033575 100644
--- a/configurable_settings_test.cpp
+++ b/configurable_settings_test.cpp
@@ -1,6 +1,6 @@
 // Configurable settings--unit test.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/configuration.make b/configuration.make
index f00768f..2ce1a6e 100644
--- a/configuration.make
+++ b/configuration.make
@@ -1,6 +1,6 @@
 # Configuration makefile.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/configure.ac b/configure.ac
index bcc117c..90e9e49 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl configure.ac script for lmi, process with autoconf to create configure
 dnl
-dnl Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Vadim Zeitlin.
+dnl Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Vadim Zeitlin.
 dnl
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License version 2 as
diff --git a/contains.hpp b/contains.hpp
index 51854bf..c4f01ba 100644
--- a/contains.hpp
+++ b/contains.hpp
@@ -1,6 +1,6 @@
 // Ascertain whether a "container" includes a given element.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/contains_test.cpp b/contains_test.cpp
index bacb71e..93b59e1 100644
--- a/contains_test.cpp
+++ b/contains_test.cpp
@@ -1,6 +1,6 @@
 // Ascertain whether a "container" includes a given element--unit test.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/cpp_main.cpp b/cpp_main.cpp
index 4bf05b3..7326cf8 100644
--- a/cpp_main.cpp
+++ b/cpp_main.cpp
@@ -1,6 +1,6 @@
 // Unit-test framework based on Beman Dawes's boost library.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/crc32.cpp b/crc32.cpp
index 3f1558b..a1ff982 100644
--- a/crc32.cpp
+++ b/crc32.cpp
@@ -1,6 +1,6 @@
 // 32-bit cyclic redundancy check.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/crc32.hpp b/crc32.hpp
index e409395..bdef6b3 100644
--- a/crc32.hpp
+++ b/crc32.hpp
@@ -1,6 +1,6 @@
 // 32-bit cyclic redundancy check.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/crc32_test.cpp b/crc32_test.cpp
index 6c64787..db97300 100644
--- a/crc32_test.cpp
+++ b/crc32_test.cpp
@@ -1,6 +1,6 @@
 // 32-bit cyclic redundancy check--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/currency.hpp b/currency.hpp
index e8b81b3..b9bd8ad 100644
--- a/currency.hpp
+++ b/currency.hpp
@@ -1,6 +1,6 @@
 // Represent a currency amount exactly as integral cents.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/currency_test.cpp b/currency_test.cpp
index 0e7a4d0..98ba42a 100644
--- a/currency_test.cpp
+++ b/currency_test.cpp
@@ -1,6 +1,6 @@
 // Represent a currency amount exactly as integral cents--unit test.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/custom_io_0.cpp b/custom_io_0.cpp
index 989bd60..8981910 100644
--- a/custom_io_0.cpp
+++ b/custom_io_0.cpp
@@ -1,6 +1,6 @@
 // Custom interface number zero.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/custom_io_0.hpp b/custom_io_0.hpp
index 8558b89..e5675bb 100644
--- a/custom_io_0.hpp
+++ b/custom_io_0.hpp
@@ -1,6 +1,6 @@
 // Custom interface number zero.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/custom_io_1.cpp b/custom_io_1.cpp
index b7986f0..419c579 100644
--- a/custom_io_1.cpp
+++ b/custom_io_1.cpp
@@ -1,6 +1,6 @@
 // Custom interface number one.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/custom_io_1.hpp b/custom_io_1.hpp
index f2c9b4c..77e8ab4 100644
--- a/custom_io_1.hpp
+++ b/custom_io_1.hpp
@@ -1,6 +1,6 @@
 // Custom interface number one.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/data_directory.cpp b/data_directory.cpp
index b9084a4..9743cc8 100644
--- a/data_directory.cpp
+++ b/data_directory.cpp
@@ -1,6 +1,6 @@
 // Data directory.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/data_directory.hpp b/data_directory.hpp
index d3d5b07..3dc2b66 100644
--- a/data_directory.hpp
+++ b/data_directory.hpp
@@ -1,6 +1,6 @@
 // Data directory.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database.cpp b/database.cpp
index 760ac1b..8d5dba7 100644
--- a/database.cpp
+++ b/database.cpp
@@ -1,6 +1,6 @@
 // Product database.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database.hpp b/database.hpp
index 05c82af..84da5f1 100644
--- a/database.hpp
+++ b/database.hpp
@@ -1,6 +1,6 @@
 // Product database.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_document.cpp b/database_document.cpp
index 0ca2e6a..4754bc0 100644
--- a/database_document.cpp
+++ b/database_document.cpp
@@ -1,6 +1,6 @@
 // Document class for Database dictionary.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_document.hpp b/database_document.hpp
index 69c47f9..3556bbd 100644
--- a/database_document.hpp
+++ b/database_document.hpp
@@ -1,6 +1,6 @@
 // Document class for Database dictionary.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_view.cpp b/database_view.cpp
index e8f066f..65c29b9 100644
--- a/database_view.cpp
+++ b/database_view.cpp
@@ -1,6 +1,6 @@
 // Database dictionary manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_view.hpp b/database_view.hpp
index ceee69a..eba9de9 100644
--- a/database_view.hpp
+++ b/database_view.hpp
@@ -1,6 +1,6 @@
 // Database dictionary manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_view_editor.cpp b/database_view_editor.cpp
index 8bf0784..8cd754f 100644
--- a/database_view_editor.cpp
+++ b/database_view_editor.cpp
@@ -1,6 +1,6 @@
 // Database dictionary manager editor classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/database_view_editor.hpp b/database_view_editor.hpp
index 1f2f282..2a6c98d 100644
--- a/database_view_editor.hpp
+++ b/database_view_editor.hpp
@@ -1,6 +1,6 @@
 // Database dictionary manager editor classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_base.cpp b/datum_base.cpp
index 87c40df..720c5f1 100644
--- a/datum_base.cpp
+++ b/datum_base.cpp
@@ -1,6 +1,6 @@
 // Input data for wx data-transfer demonstration: base class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_base.hpp b/datum_base.hpp
index 18e6c07..7f5dfbf 100644
--- a/datum_base.hpp
+++ b/datum_base.hpp
@@ -1,6 +1,6 @@
 // Input data for wx data-transfer demonstration: base class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_boolean.cpp b/datum_boolean.cpp
index 95ff248..bb0168e 100644
--- a/datum_boolean.cpp
+++ b/datum_boolean.cpp
@@ -1,6 +1,6 @@
 // Boolean input class for wx data-transfer framework.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_boolean.hpp b/datum_boolean.hpp
index a1b9e59..916e7c4 100644
--- a/datum_boolean.hpp
+++ b/datum_boolean.hpp
@@ -1,6 +1,6 @@
 // Boolean input class for wx data-transfer framework.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_sequence.cpp b/datum_sequence.cpp
index 2cf6c01..a593646 100644
--- a/datum_sequence.cpp
+++ b/datum_sequence.cpp
@@ -1,6 +1,6 @@
 // Input-sequence class for wx data-transfer framework.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_sequence.hpp b/datum_sequence.hpp
index c6cc9bc..d546f20 100644
--- a/datum_sequence.hpp
+++ b/datum_sequence.hpp
@@ -1,6 +1,6 @@
 // Input-sequence class for wx data-transfer framework.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_string.cpp b/datum_string.cpp
index 2cd7e34..936d943 100644
--- a/datum_string.cpp
+++ b/datum_string.cpp
@@ -1,6 +1,6 @@
 // String input class for wx data-transfer framework.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/datum_string.hpp b/datum_string.hpp
index 5457a5b..3c5230d 100644
--- a/datum_string.hpp
+++ b/datum_string.hpp
@@ -1,6 +1,6 @@
 // String input class for wx data-transfer framework.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbdict.cpp b/dbdict.cpp
index d8875f6..460e457 100644
--- a/dbdict.cpp
+++ b/dbdict.cpp
@@ -1,6 +1,6 @@
 // Product-database map.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbdict.hpp b/dbdict.hpp
index da5db62..5f771e9 100644
--- a/dbdict.hpp
+++ b/dbdict.hpp
@@ -1,6 +1,6 @@
 // Product-database map.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbindex.hpp b/dbindex.hpp
index e64c118..2098983 100644
--- a/dbindex.hpp
+++ b/dbindex.hpp
@@ -1,6 +1,6 @@
 // Product-database lookup index.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbnames.cpp b/dbnames.cpp
index 2ceaaa6..3b5a865 100644
--- a/dbnames.cpp
+++ b/dbnames.cpp
@@ -1,6 +1,6 @@
 // Product database entity names.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbnames.hpp b/dbnames.hpp
index 8ebd6d0..0372ff2 100644
--- a/dbnames.hpp
+++ b/dbnames.hpp
@@ -1,6 +1,6 @@
 // Product database entity names.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbnames.xpp b/dbnames.xpp
index 7fb3e6d..1ba90fb 100644
--- a/dbnames.xpp
+++ b/dbnames.xpp
@@ -1,6 +1,6 @@
 // Database entity names.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbvalue.cpp b/dbvalue.cpp
index 4d21126..c5f9fbe 100644
--- a/dbvalue.cpp
+++ b/dbvalue.cpp
@@ -1,6 +1,6 @@
 // Product-database entity.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/dbvalue.hpp b/dbvalue.hpp
index bd0900c..2dff6cb 100644
--- a/dbvalue.hpp
+++ b/dbvalue.hpp
@@ -1,6 +1,6 @@
 // Product-database entity.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/death_benefits.cpp b/death_benefits.cpp
index 8f8b328..1f7436d 100644
--- a/death_benefits.cpp
+++ b/death_benefits.cpp
@@ -1,6 +1,6 @@
 // Death benefits.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/death_benefits.hpp b/death_benefits.hpp
index 21dd4ce..d3c4882 100644
--- a/death_benefits.hpp
+++ b/death_benefits.hpp
@@ -1,6 +1,6 @@
 // Death benefits.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/default_view.cpp b/default_view.cpp
index 355515f..e45b033 100644
--- a/default_view.cpp
+++ b/default_view.cpp
@@ -1,6 +1,6 @@
 // Default MVC View for life-insurance illustrations.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/default_view.hpp b/default_view.hpp
index a17e1dd..5c01d2b 100644
--- a/default_view.hpp
+++ b/default_view.hpp
@@ -1,6 +1,6 @@
 // Default MVC View for life-insurance illustrations.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/deserialize_cast.hpp b/deserialize_cast.hpp
index b97fc38..5e08861 100644
--- a/deserialize_cast.hpp
+++ b/deserialize_cast.hpp
@@ -1,6 +1,6 @@
 // Safe replacement for reinterpret_cast<POD_type>(char*).
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/diagnostics.sed b/diagnostics.sed
index 57bd23a..ebd2ece 100644
--- a/diagnostics.sed
+++ b/diagnostics.sed
@@ -1,6 +1,6 @@
 # Parse compiler output for diagnostics.
 #
-# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/docmanager_ex.cpp b/docmanager_ex.cpp
index 53f45fe..e58bec6 100644
--- a/docmanager_ex.cpp
+++ b/docmanager_ex.cpp
@@ -1,6 +1,6 @@
 // Customize implementation details of library class wxDocManager.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/docmanager_ex.hpp b/docmanager_ex.hpp
index 9bf7905..da23220 100644
--- a/docmanager_ex.hpp
+++ b/docmanager_ex.hpp
@@ -1,6 +1,6 @@
 // Customize implementation details of library class wxDocManager.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/edit_mvc_docview_parameters.hpp b/edit_mvc_docview_parameters.hpp
index f38b512..0013edd 100644
--- a/edit_mvc_docview_parameters.hpp
+++ b/edit_mvc_docview_parameters.hpp
@@ -1,6 +1,6 @@
 // Edit input parameters using lmi's MVC framework with wx docview.
 //
-// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/elapsed_time.cpp b/elapsed_time.cpp
index 0299c2a..a65a3e4 100644
--- a/elapsed_time.cpp
+++ b/elapsed_time.cpp
@@ -1,6 +1,6 @@
 // Time program execution.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/emit_ledger.cpp b/emit_ledger.cpp
index ab584df..82d3249 100644
--- a/emit_ledger.cpp
+++ b/emit_ledger.cpp
@@ -1,6 +1,6 @@
 // Emit a ledger or a group of ledgers in various guises.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/emit_ledger.hpp b/emit_ledger.hpp
index 1625f19..38a22c3 100644
--- a/emit_ledger.hpp
+++ b/emit_ledger.hpp
@@ -1,6 +1,6 @@
 // Emit a ledger or a group of ledgers in various guises.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/errors.sed b/errors.sed
index 274271f..334a296 100644
--- a/errors.sed
+++ b/errors.sed
@@ -1,6 +1,6 @@
 # Parse compiler output for errors.
 #
-# Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/exit_codes.hpp b/exit_codes.hpp
index 3220166..b90ce07 100644
--- a/exit_codes.hpp
+++ b/exit_codes.hpp
@@ -1,6 +1,6 @@
 // Unit-test framework based on Beman Dawes's boost library.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/expression_template_0_test.cpp b/expression_template_0_test.cpp
index c197f09..42ba3fa 100644
--- a/expression_template_0_test.cpp
+++ b/expression_template_0_test.cpp
@@ -1,6 +1,6 @@
 // Expression templates, investigation 0--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/facets.cpp b/facets.cpp
index 768a868..a9bad60 100644
--- a/facets.cpp
+++ b/facets.cpp
@@ -1,6 +1,6 @@
 // Custom facets.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/facets.hpp b/facets.hpp
index ccd26e0..29c8768 100644
--- a/facets.hpp
+++ b/facets.hpp
@@ -1,6 +1,6 @@
 // Custom facets.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/faq.html b/faq.html
index 92b349a..38f6f76 100644
--- a/faq.html
+++ b/faq.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -148,7 +148,7 @@ That&rsquo;s probably close enough.
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/fenv_guard.cpp b/fenv_guard.cpp
index 444059e..223048e 100644
--- a/fenv_guard.cpp
+++ b/fenv_guard.cpp
@@ -1,6 +1,6 @@
 // Guard floating-point environment.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fenv_guard.hpp b/fenv_guard.hpp
index 81d42bf..adec0bb 100644
--- a/fenv_guard.hpp
+++ b/fenv_guard.hpp
@@ -1,6 +1,6 @@
 // Guard floating-point environment.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fenv_lmi.cpp b/fenv_lmi.cpp
index 099192b..bcca009 100644
--- a/fenv_lmi.cpp
+++ b/fenv_lmi.cpp
@@ -1,6 +1,6 @@
 // Manage floating-point environment.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fenv_lmi.hpp b/fenv_lmi.hpp
index 3fbba7d..01a25b2 100644
--- a/fenv_lmi.hpp
+++ b/fenv_lmi.hpp
@@ -1,6 +1,6 @@
 // Manage floating-point environment.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fenv_lmi_test.cpp b/fenv_lmi_test.cpp
index 8f4b19d..fc78eb3 100644
--- a/fenv_lmi_test.cpp
+++ b/fenv_lmi_test.cpp
@@ -1,6 +1,6 @@
 // Manage floating-point environment--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fenv_lmi_x86.hpp b/fenv_lmi_x86.hpp
index 788386a..d7a4a31 100644
--- a/fenv_lmi_x86.hpp
+++ b/fenv_lmi_x86.hpp
@@ -1,6 +1,6 @@
 // Manage floating-point environment: x86 implementation details.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command.cpp b/file_command.cpp
index daed037..7574572 100644
--- a/file_command.cpp
+++ b/file_command.cpp
@@ -1,6 +1,6 @@
 // Run a command against a file, respecting its extension.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command.hpp b/file_command.hpp
index 10b5da5..02c798a 100644
--- a/file_command.hpp
+++ b/file_command.hpp
@@ -1,6 +1,6 @@
 // Run a command against a file, respecting its extension.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command_cgi.cpp b/file_command_cgi.cpp
index 5ae139c..f0a5b46 100644
--- a/file_command_cgi.cpp
+++ b/file_command_cgi.cpp
@@ -1,6 +1,6 @@
 // Run file command--common gateway interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command_cli.cpp b/file_command_cli.cpp
index 9f2a758..bb4a8ff 100644
--- a/file_command_cli.cpp
+++ b/file_command_cli.cpp
@@ -1,6 +1,6 @@
 // Run file command--command-line interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command_test.cpp b/file_command_test.cpp
index a4572f4..972c7e1 100644
--- a/file_command_test.cpp
+++ b/file_command_test.cpp
@@ -1,6 +1,6 @@
 // Run a command against a file, respecting its extension--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/file_command_wx.cpp b/file_command_wx.cpp
index 2cb3e06..74d85e7 100644
--- a/file_command_wx.cpp
+++ b/file_command_wx.cpp
@@ -1,6 +1,6 @@
 // Run file command--wx interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/financial.cpp b/financial.cpp
index 0baa187..3a4ac45 100644
--- a/financial.cpp
+++ b/financial.cpp
@@ -1,6 +1,6 @@
 // Financial functions.
 //
-// Copyright (C) 2017 Gregory W. Chicares.
+// Copyright (C) 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/financial.hpp b/financial.hpp
index 12b2c22..55535d3 100644
--- a/financial.hpp
+++ b/financial.hpp
@@ -1,6 +1,6 @@
 // Financial functions.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/financial_test.cpp b/financial_test.cpp
index 6a7c634..f6de5b5 100644
--- a/financial_test.cpp
+++ b/financial_test.cpp
@@ -1,6 +1,6 @@
 // Financial functions--unit test.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fo_common.xsl b/fo_common.xsl
index 0cce56c..7334dce 100644
--- a/fo_common.xsl
+++ b/fo_common.xsl
@@ -2,7 +2,7 @@
 <!--
     Common part of various illustrations.
 
-    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/force_linking.hpp b/force_linking.hpp
index 3a226e3..26ec3f0 100644
--- a/force_linking.hpp
+++ b/force_linking.hpp
@@ -1,6 +1,6 @@
 // Force linking despite overly-aggressive linker "optimization".
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fund_data.cpp b/fund_data.cpp
index 90cdf34..ca776cf 100644
--- a/fund_data.cpp
+++ b/fund_data.cpp
@@ -1,6 +1,6 @@
 // Fund names and investment-management fees.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/fund_data.hpp b/fund_data.hpp
index 63ec475..ae254f7 100644
--- a/fund_data.hpp
+++ b/fund_data.hpp
@@ -1,6 +1,6 @@
 // Fund names and investment-management fees.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/generate_passkey.cpp b/generate_passkey.cpp
index 3761878..3a0b248 100644
--- a/generate_passkey.cpp
+++ b/generate_passkey.cpp
@@ -1,6 +1,6 @@
 // Moderately secure system date validation--passkey generator.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/generate_product_files.cpp b/generate_product_files.cpp
index 7fcd867..89d8fd2 100644
--- a/generate_product_files.cpp
+++ b/generate_product_files.cpp
@@ -1,6 +1,6 @@
 // Generate product rule and rate files.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/getopt.cpp b/getopt.cpp
index 0bf2277..655b9c5 100644
--- a/getopt.cpp
+++ b/getopt.cpp
@@ -16,7 +16,7 @@
 // the reputations of Douglas C. Schmidt or Vinicius J. Latorre.
 //
 // GWC modifications are
-//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares
+//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares
 // and released with the same licensing terms as the original, viz.:
 
 // This file is part of the GNU C++ Library.  This library is free
diff --git a/getopt.hpp b/getopt.hpp
index cc5fe50..c7cd55b 100644
--- a/getopt.hpp
+++ b/getopt.hpp
@@ -16,7 +16,7 @@
 // the reputations of Douglas C. Schmidt or Vinicius J. Latorre.
 //
 // GWC modifications are
-//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares
+//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares
 // and released with the same licensing terms as the original, viz.:
 
 // This file is part of the GNU C++ Library.  This library is free
diff --git a/getopt_test.cpp b/getopt_test.cpp
index 90dcfaa..36332ca 100644
--- a/getopt_test.cpp
+++ b/getopt_test.cpp
@@ -16,7 +16,7 @@
 // the reputations of Douglas C. Schmidt or Vinicius J. Latorre.
 //
 // GWC modifications are
-//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares
+//   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares
 // and released with the same licensing terms as the original, viz.:
 
 // This file is part of the GNU C++ Library.  This library is free
diff --git a/global_settings.cpp b/global_settings.cpp
index fb74fc9..ca9ee72 100644
--- a/global_settings.cpp
+++ b/global_settings.cpp
@@ -1,6 +1,6 @@
 // Global settings.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/global_settings.hpp b/global_settings.hpp
index bd32bfb..c226463 100644
--- a/global_settings.hpp
+++ b/global_settings.hpp
@@ -1,6 +1,6 @@
 // Global settings.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/global_settings_test.cpp b/global_settings_test.cpp
index c8a3fac..490d254 100644
--- a/global_settings_test.cpp
+++ b/global_settings_test.cpp
@@ -1,6 +1,6 @@
 // Global settings--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt.xrc b/gpt.xrc
index a00795d..276b445 100644
--- a/gpt.xrc
+++ b/gpt.xrc
@@ -5,7 +5,7 @@
 <!--
     wxWindows xml input-notebook resources for guideline premium test.
 
-    Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+    Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_commutation_functions.cpp b/gpt_commutation_functions.cpp
index a21dc2b..875bfa3 100644
--- a/gpt_commutation_functions.cpp
+++ b/gpt_commutation_functions.cpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702: GPT commutation functions.
 //
-// Copyright (C) 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_commutation_functions.hpp b/gpt_commutation_functions.hpp
index 3939196..6912ded 100644
--- a/gpt_commutation_functions.hpp
+++ b/gpt_commutation_functions.hpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702: GPT commutation functions.
 //
-// Copyright (C) 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_document.cpp b/gpt_document.cpp
index 9dd676a..9b02e85 100644
--- a/gpt_document.cpp
+++ b/gpt_document.cpp
@@ -1,6 +1,6 @@
 // Document class for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_document.hpp b/gpt_document.hpp
index b68c2f0..65859ef 100644
--- a/gpt_document.hpp
+++ b/gpt_document.hpp
@@ -1,6 +1,6 @@
 // Document class for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_input.cpp b/gpt_input.cpp
index e435535..97a892a 100644
--- a/gpt_input.cpp
+++ b/gpt_input.cpp
@@ -1,6 +1,6 @@
 // MVC Model for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_input.hpp b/gpt_input.hpp
index fe86599..d9edef8 100644
--- a/gpt_input.hpp
+++ b/gpt_input.hpp
@@ -1,6 +1,6 @@
 // MVC Model for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_server.cpp b/gpt_server.cpp
index 925f020..9e9d5ce 100644
--- a/gpt_server.cpp
+++ b/gpt_server.cpp
@@ -1,6 +1,6 @@
 // Server for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_server.hpp b/gpt_server.hpp
index d9a04bc..05ed084 100644
--- a/gpt_server.hpp
+++ b/gpt_server.hpp
@@ -1,6 +1,6 @@
 // Server for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_specamt.cpp b/gpt_specamt.cpp
index 2dfbf0e..ad89896 100644
--- a/gpt_specamt.cpp
+++ b/gpt_specamt.cpp
@@ -1,6 +1,6 @@
 // Determine specamt from GLP or GSP.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_specamt.hpp b/gpt_specamt.hpp
index 1c0c2b1..d0f5768 100644
--- a/gpt_specamt.hpp
+++ b/gpt_specamt.hpp
@@ -1,6 +1,6 @@
 // Determine specamt from GLP or GSP.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_state.cpp b/gpt_state.cpp
index 3f4b9a9..f49e979 100644
--- a/gpt_state.cpp
+++ b/gpt_state.cpp
@@ -1,6 +1,6 @@
 // Transient state of guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_state.hpp b/gpt_state.hpp
index 5cfddcd..fa887c6 100644
--- a/gpt_state.hpp
+++ b/gpt_state.hpp
@@ -1,6 +1,6 @@
 // Transient state of guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_test.cpp b/gpt_test.cpp
index 5c223e2..ec1ee07 100644
--- a/gpt_test.cpp
+++ b/gpt_test.cpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702 guideline premium--unit test.
 //
-// Copyright (C) 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_view.cpp b/gpt_view.cpp
index 6a30e16..8493d1d 100644
--- a/gpt_view.cpp
+++ b/gpt_view.cpp
@@ -1,6 +1,6 @@
 // Document view for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_view.hpp b/gpt_view.hpp
index d2d854a..a166825 100644
--- a/gpt_view.hpp
+++ b/gpt_view.hpp
@@ -1,6 +1,6 @@
 // Document view for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_xml_document.cpp b/gpt_xml_document.cpp
index 1971b8d..44f2858 100644
--- a/gpt_xml_document.cpp
+++ b/gpt_xml_document.cpp
@@ -1,6 +1,6 @@
 // xml document for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/gpt_xml_document.hpp b/gpt_xml_document.hpp
index d709a16..18cd9bc 100644
--- a/gpt_xml_document.hpp
+++ b/gpt_xml_document.hpp
@@ -1,6 +1,6 @@
 // xml document for guideline premium test.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/group_quote_pdf_gen.cpp b/group_quote_pdf_gen.cpp
index 8001a7f..b3f9249 100644
--- a/group_quote_pdf_gen.cpp
+++ b/group_quote_pdf_gen.cpp
@@ -1,6 +1,6 @@
 // Generate group premium quote PDF file.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/group_quote_pdf_gen.hpp b/group_quote_pdf_gen.hpp
index e897aef..10d5a4d 100644
--- a/group_quote_pdf_gen.hpp
+++ b/group_quote_pdf_gen.hpp
@@ -1,6 +1,6 @@
 // Generate group premium quote PDF file.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/group_quote_pdf_gen_wx.cpp b/group_quote_pdf_gen_wx.cpp
index 4043a99..2221777 100644
--- a/group_quote_pdf_gen_wx.cpp
+++ b/group_quote_pdf_gen_wx.cpp
@@ -1,6 +1,6 @@
 // Generate group premium quote PDF file.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/group_tutorial.html b/group_tutorial.html
index 3f0de9d..add7f3b 100644
--- a/group_tutorial.html
+++ b/group_tutorial.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -435,7 +435,7 @@ pull down the <samp>File</samp> menu and pick <samp>Save 
as</samp>.
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/group_values.cpp b/group_values.cpp
index c8ef1fd..6678cde 100644
--- a/group_values.cpp
+++ b/group_values.cpp
@@ -1,6 +1,6 @@
 // Distinct and composite values for cells in a group.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/group_values.hpp b/group_values.hpp
index be7f55f..33198bc 100644
--- a/group_values.hpp
+++ b/group_values.hpp
@@ -1,6 +1,6 @@
 // Distinct and composite values for cells in a group.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/handle_exceptions.hpp b/handle_exceptions.hpp
index c98f7aa..1f78147 100644
--- a/handle_exceptions.hpp
+++ b/handle_exceptions.hpp
@@ -1,6 +1,6 @@
 // Handlers for exceptional situations.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/handle_exceptions_test.cpp b/handle_exceptions_test.cpp
index 810f98f..c4a84f4 100644
--- a/handle_exceptions_test.cpp
+++ b/handle_exceptions_test.cpp
@@ -1,6 +1,6 @@
 // Handlers for exceptional situations--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/hooks/commit-msg b/hooks/commit-msg
index 7f0f05b..ef4dcf2 100755
--- a/hooks/commit-msg
+++ b/hooks/commit-msg
@@ -2,7 +2,7 @@
 
 # git commit-msg hook
 
-# Copyright (C) 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/hooks/pre-commit b/hooks/pre-commit
index 00e41f5..ee0b542 100755
--- a/hooks/pre-commit
+++ b/hooks/pre-commit
@@ -2,7 +2,7 @@
 
 # git pre-commit hook
 
-# Copyright (C) 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/icon_monger.cpp b/icon_monger.cpp
index 6a926d5..fc14d77 100644
--- a/icon_monger.cpp
+++ b/icon_monger.cpp
@@ -1,6 +1,6 @@
 // Icon provider for wx interface.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/icon_monger.hpp b/icon_monger.hpp
index ef3e787..dc7c882 100644
--- a/icon_monger.hpp
+++ b/icon_monger.hpp
@@ -1,6 +1,6 @@
 // Icon provider for wx interface.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ieee754.hpp b/ieee754.hpp
index 5fcb897..5328d44 100644
--- a/ieee754.hpp
+++ b/ieee754.hpp
@@ -1,6 +1,6 @@
 // IEEE 754 esoterica.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ieee754_test.cpp b/ieee754_test.cpp
index 1cacd1e..5aefe05 100644
--- a/ieee754_test.cpp
+++ b/ieee754_test.cpp
@@ -1,6 +1,6 @@
 // IEEE 754 esoterica--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_acctval.cpp b/ihs_acctval.cpp
index 57cd15b..bb808d5 100644
--- a/ihs_acctval.cpp
+++ b/ihs_acctval.cpp
@@ -1,6 +1,6 @@
 // Account value.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_avdebug.cpp b/ihs_avdebug.cpp
index dc68c82..e93d792 100644
--- a/ihs_avdebug.cpp
+++ b/ihs_avdebug.cpp
@@ -1,6 +1,6 @@
 // Account value: monthly detail.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_avmly.cpp b/ihs_avmly.cpp
index 07d3dec..fc859d2 100644
--- a/ihs_avmly.cpp
+++ b/ihs_avmly.cpp
@@ -1,6 +1,6 @@
 // Account value: monthiversary processing.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_avsolve.cpp b/ihs_avsolve.cpp
index c2e0c63..572b548 100644
--- a/ihs_avsolve.cpp
+++ b/ihs_avsolve.cpp
@@ -1,6 +1,6 @@
 // Solves.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_avstrtgy.cpp b/ihs_avstrtgy.cpp
index 3c580ee..19c8646 100644
--- a/ihs_avstrtgy.cpp
+++ b/ihs_avstrtgy.cpp
@@ -1,6 +1,6 @@
 // Account value: strategy implementation.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_basicval.cpp b/ihs_basicval.cpp
index 5412f61..cbe2a7e 100644
--- a/ihs_basicval.cpp
+++ b/ihs_basicval.cpp
@@ -1,6 +1,6 @@
 // Basic values.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_crc_comp.cpp b/ihs_crc_comp.cpp
index 74295de..30c80c1 100644
--- a/ihs_crc_comp.cpp
+++ b/ihs_crc_comp.cpp
@@ -1,6 +1,6 @@
 // Compare two regression-test '.crc' files.
 //
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_irc7702.cpp b/ihs_irc7702.cpp
index e17df22..1b24fd6 100644
--- a/ihs_irc7702.cpp
+++ b/ihs_irc7702.cpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702 (definition of life insurance).
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_irc7702.hpp b/ihs_irc7702.hpp
index 838c1e2..5991f61 100644
--- a/ihs_irc7702.hpp
+++ b/ihs_irc7702.hpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702 (definition of life insurance).
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_irc7702a.cpp b/ihs_irc7702a.cpp
index d89e4e5..dc0acb6 100644
--- a/ihs_irc7702a.cpp
+++ b/ihs_irc7702a.cpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702A (MEC testing).
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_irc7702a.hpp b/ihs_irc7702a.hpp
index 2dd491a..9614f20 100644
--- a/ihs_irc7702a.hpp
+++ b/ihs_irc7702a.hpp
@@ -1,6 +1,6 @@
 // Internal Revenue Code section 7702A (MEC testing).
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_mortal.cpp b/ihs_mortal.cpp
index afc3cb9..4947f07 100644
--- a/ihs_mortal.cpp
+++ b/ihs_mortal.cpp
@@ -1,6 +1,6 @@
 // Mortality rates.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_server7702.cpp b/ihs_server7702.cpp
index b2ec337..e89d276 100644
--- a/ihs_server7702.cpp
+++ b/ihs_server7702.cpp
@@ -1,6 +1,6 @@
 // GPT server.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_server7702.hpp b/ihs_server7702.hpp
index 607df82..dda6d81 100644
--- a/ihs_server7702.hpp
+++ b/ihs_server7702.hpp
@@ -1,6 +1,6 @@
 // Guideline-premium-test server.
 //
-// Copyright (C) 1998, 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ihs_x_type.hpp b/ihs_x_type.hpp
index 29f603a..b50ef0d 100644
--- a/ihs_x_type.hpp
+++ b/ihs_x_type.hpp
@@ -1,6 +1,6 @@
 // GPT server exception type.
 //
-// Copyright (C) 1998, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustration_document.cpp b/illustration_document.cpp
index 314f002..0abe85d 100644
--- a/illustration_document.cpp
+++ b/illustration_document.cpp
@@ -1,6 +1,6 @@
 // Document class for illustrations.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustration_document.hpp b/illustration_document.hpp
index f3fc8bd..2c45c6c 100644
--- a/illustration_document.hpp
+++ b/illustration_document.hpp
@@ -1,6 +1,6 @@
 // Document class for illustrations.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustration_reg.xsl b/illustration_reg.xsl
index eb78ab5..c80dd14 100644
--- a/illustration_reg.xsl
+++ b/illustration_reg.xsl
@@ -2,7 +2,7 @@
 <!--
     Life insurance illustrations.
 
-    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/illustration_view.cpp b/illustration_view.cpp
index a8815b7..47186fd 100644
--- a/illustration_view.cpp
+++ b/illustration_view.cpp
@@ -1,6 +1,6 @@
 // Document view for illustrations.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustration_view.hpp b/illustration_view.hpp
index 3d63b94..144eaac 100644
--- a/illustration_view.hpp
+++ b/illustration_view.hpp
@@ -1,6 +1,6 @@
 // Document view for illustrations.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustrator.cpp b/illustrator.cpp
index 02b37a2..2562d37 100644
--- a/illustrator.cpp
+++ b/illustrator.cpp
@@ -1,6 +1,6 @@
 // Sole top-level facility for illustration generation.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/illustrator.hpp b/illustrator.hpp
index 3bcba87..093fbfd 100644
--- a/illustrator.hpp
+++ b/illustrator.hpp
@@ -1,6 +1,6 @@
 // Sole top-level facility for illustration generation.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/individual_tutorial.html b/individual_tutorial.html
index 5f1b7e3..3101ba4 100644
--- a/individual_tutorial.html
+++ b/individual_tutorial.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -163,7 +163,7 @@ To save a file under a new name or in a new location, pull 
down the
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/input.cpp b/input.cpp
index b1f3297..5c2fe96 100644
--- a/input.cpp
+++ b/input.cpp
@@ -1,6 +1,6 @@
 // MVC Model for life-insurance illustrations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input.hpp b/input.hpp
index a3c6fde..75e99ee 100644
--- a/input.hpp
+++ b/input.hpp
@@ -1,6 +1,6 @@
 // MVC Model for life-insurance illustrations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_harmonization.cpp b/input_harmonization.cpp
index 0cd9f76..48655d4 100644
--- a/input_harmonization.cpp
+++ b/input_harmonization.cpp
@@ -1,6 +1,6 @@
 // Life-insurance illustration input--control harmonization.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_realization.cpp b/input_realization.cpp
index 2c90b50..465b451 100644
--- a/input_realization.cpp
+++ b/input_realization.cpp
@@ -1,6 +1,6 @@
 // Realize sequence-string input as vectors.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence.cpp b/input_sequence.cpp
index 54f438e..64c85c4 100644
--- a/input_sequence.cpp
+++ b/input_sequence.cpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...)
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence.hpp b/input_sequence.hpp
index 2f06fe4..bf4b1d0 100644
--- a/input_sequence.hpp
+++ b/input_sequence.hpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...)
 //
-// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_aux.cpp b/input_sequence_aux.cpp
index 7ed8aaf..dfbde9c 100644
--- a/input_sequence_aux.cpp
+++ b/input_sequence_aux.cpp
@@ -1,6 +1,6 @@
 // Interpret sequence strings containing mc_enum and tn_range types.
 //
-// Copyright (C) 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_aux.hpp b/input_sequence_aux.hpp
index 00297cb..97d5674 100644
--- a/input_sequence_aux.hpp
+++ b/input_sequence_aux.hpp
@@ -1,6 +1,6 @@
 // Interpret sequence strings containing mc_enum and tn_range types.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_entry.cpp b/input_sequence_entry.cpp
index a6ee31e..45e8e70 100644
--- a/input_sequence_entry.cpp
+++ b/input_sequence_entry.cpp
@@ -1,6 +1,6 @@
 // Pop-up input-sequence editor.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_entry.hpp b/input_sequence_entry.hpp
index fbeedd0..55195b8 100644
--- a/input_sequence_entry.hpp
+++ b/input_sequence_entry.hpp
@@ -1,6 +1,6 @@
 // Pop-up input-sequence editor.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_interval.hpp b/input_sequence_interval.hpp
index 66df471..b0169fd 100644
--- a/input_sequence_interval.hpp
+++ b/input_sequence_interval.hpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...): interval
 //
-// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_parser.cpp b/input_sequence_parser.cpp
index 86cfc54..6e80501 100644
--- a/input_sequence_parser.cpp
+++ b/input_sequence_parser.cpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...): parser
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_parser.hpp b/input_sequence_parser.hpp
index 556dbf8..cb5be04 100644
--- a/input_sequence_parser.hpp
+++ b/input_sequence_parser.hpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...): parser
 //
-// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_sequence_test.cpp b/input_sequence_test.cpp
index 8313743..87407f4 100644
--- a/input_sequence_test.cpp
+++ b/input_sequence_test.cpp
@@ -1,6 +1,6 @@
 // Input sequences (e.g. 1 3; 7 5;0; --> 1 1 1 7 7 0...): unit test
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_test.cpp b/input_test.cpp
index 0932804..d6ec298 100644
--- a/input_test.cpp
+++ b/input_test.cpp
@@ -1,6 +1,6 @@
 // MVC Model for life-insurance illustrations--unit test.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/input_xml_io.cpp b/input_xml_io.cpp
index 68dfb47..27c68b5 100644
--- a/input_xml_io.cpp
+++ b/input_xml_io.cpp
@@ -1,6 +1,6 @@
 // MVC Model for life-insurance illustrations: xml I/O.
 //
-// Copyright (C) 1998, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/install_como.sh b/install_como.sh
index 8cbd149..76b5eb5 100755
--- a/install_como.sh
+++ b/install_como.sh
@@ -2,7 +2,7 @@
 
 # Install como C++ on msw, with MinGW gcc-2.95.3-5 as its C compiler.
 
-# Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+# Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_cygwin.bat b/install_cygwin.bat
index 6b83392..e6ae7a7 100644
--- a/install_cygwin.bat
+++ b/install_cygwin.bat
@@ -1,6 +1,6 @@
 @REM Cygwin installation.
 @REM
address@hidden Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
address@hidden Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 @REM
 @REM This program is free software; you can redistribute it and/or modify
 @REM it under the terms of the GNU General Public License version 2 as
diff --git a/install_libxml2_libxslt.make b/install_libxml2_libxslt.make
index 998092d..858ae6c 100644
--- a/install_libxml2_libxslt.make
+++ b/install_libxml2_libxslt.make
@@ -1,6 +1,6 @@
 # Install libxml2 and libxslt with options suitable for lmi.
 #
-# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_mingw.make b/install_mingw.make
index 9945f9d..3a9116f 100644
--- a/install_mingw.make
+++ b/install_mingw.make
@@ -1,6 +1,6 @@
 # Installer for MinGW-w64 native toolchain.
 #
-# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_miscellanea.make b/install_miscellanea.make
index d0aa752..edb80fa 100644
--- a/install_miscellanea.make
+++ b/install_miscellanea.make
@@ -1,6 +1,6 @@
 # Installer for sample databases and miscellaneous libraries.
 #
-# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_msw.sh b/install_msw.sh
index 906bedb..5d52e29 100755
--- a/install_msw.sh
+++ b/install_msw.sh
@@ -2,7 +2,7 @@
 
 # For msw, download and build lmi and required libraries.
 
-# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_wx.make b/install_wx.make
index f0d7a3b..29cae92 100644
--- a/install_wx.make
+++ b/install_wx.make
@@ -1,6 +1,6 @@
 # Install msw-native wx with options suitable for lmi.
 #
-# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/install_wxpdfdoc.make b/install_wxpdfdoc.make
index b326f90..e8674c6 100644
--- a/install_wxpdfdoc.make
+++ b/install_wxpdfdoc.make
@@ -1,6 +1,6 @@
 # Installer for wxPdfDocument library.
 #
-# Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/interest_rates.cpp b/interest_rates.cpp
index 918b47a..9159ba4 100644
--- a/interest_rates.cpp
+++ b/interest_rates.cpp
@@ -1,6 +1,6 @@
 // Interest rates.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/interest_rates.hpp b/interest_rates.hpp
index ced92cd..fa6e11c 100644
--- a/interest_rates.hpp
+++ b/interest_rates.hpp
@@ -1,6 +1,6 @@
 // Interest rates.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/irc7702a_test.cpp b/irc7702a_test.cpp
index 7f3a646..c92a474 100644
--- a/irc7702a_test.cpp
+++ b/irc7702a_test.cpp
@@ -1,6 +1,6 @@
 // 7702A--unit test.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/istream_to_string.hpp b/istream_to_string.hpp
index 58db8a2..63caa79 100644
--- a/istream_to_string.hpp
+++ b/istream_to_string.hpp
@@ -1,6 +1,6 @@
 // Read stream into a string. Typical use: read an entire file.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/istream_to_string_test.cpp b/istream_to_string_test.cpp
index ddc16a5..8b646cd 100644
--- a/istream_to_string_test.cpp
+++ b/istream_to_string_test.cpp
@@ -1,6 +1,6 @@
 // Read stream into a string: unit test.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger.cpp b/ledger.cpp
index e5b7eed..946e10a 100644
--- a/ledger.cpp
+++ b/ledger.cpp
@@ -1,6 +1,6 @@
 // Ledger data.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger.hpp b/ledger.hpp
index e424c65..32f7f48 100644
--- a/ledger.hpp
+++ b/ledger.hpp
@@ -1,6 +1,6 @@
 // Ledger data.
 //
-// Copyright (C) 1998, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_base.cpp b/ledger_base.cpp
index 7836748..a01fdbf 100644
--- a/ledger_base.cpp
+++ b/ledger_base.cpp
@@ -1,6 +1,6 @@
 // Ledger values: common base class.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_base.hpp b/ledger_base.hpp
index a6cba41..47536df 100644
--- a/ledger_base.hpp
+++ b/ledger_base.hpp
@@ -1,6 +1,6 @@
 // Ledger values: common base class.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_invariant.cpp b/ledger_invariant.cpp
index ba6571f..14a576b 100644
--- a/ledger_invariant.cpp
+++ b/ledger_invariant.cpp
@@ -1,6 +1,6 @@
 // Ledger data that do not vary by basis.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_invariant.hpp b/ledger_invariant.hpp
index 39de0ee..bf7f26e 100644
--- a/ledger_invariant.hpp
+++ b/ledger_invariant.hpp
@@ -1,6 +1,6 @@
 // Ledger data that do not vary by basis.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_text_formats.cpp b/ledger_text_formats.cpp
index 78486f9..9e5a7ef 100644
--- a/ledger_text_formats.cpp
+++ b/ledger_text_formats.cpp
@@ -1,6 +1,6 @@
 // Ledger formatting as text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_text_formats.hpp b/ledger_text_formats.hpp
index 11349f3..4389af6 100644
--- a/ledger_text_formats.hpp
+++ b/ledger_text_formats.hpp
@@ -1,6 +1,6 @@
 // Ledger formatting as text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_variant.cpp b/ledger_variant.cpp
index f79ff25..c760593 100644
--- a/ledger_variant.cpp
+++ b/ledger_variant.cpp
@@ -1,6 +1,6 @@
 // Ledger data that vary by basis.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_variant.hpp b/ledger_variant.hpp
index a5a8ab2..8b5742f 100644
--- a/ledger_variant.hpp
+++ b/ledger_variant.hpp
@@ -1,6 +1,6 @@
 // Ledger data that vary by basis.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_xml_io.cpp b/ledger_xml_io.cpp
index 38e1efd..46b4da4 100644
--- a/ledger_xml_io.cpp
+++ b/ledger_xml_io.cpp
@@ -1,6 +1,6 @@
 // Ledger xml input and output.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_xsl.cpp b/ledger_xsl.cpp
index 7743940..99a721e 100644
--- a/ledger_xsl.cpp
+++ b/ledger_xsl.cpp
@@ -1,6 +1,6 @@
 // Ledger xsl operations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledger_xsl.hpp b/ledger_xsl.hpp
index 31b30a4..dd2af40 100644
--- a/ledger_xsl.hpp
+++ b/ledger_xsl.hpp
@@ -1,6 +1,6 @@
 // Ledger xsl operations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledgervalues.cpp b/ledgervalues.cpp
index f10acb9..28ba063 100644
--- a/ledgervalues.cpp
+++ b/ledgervalues.cpp
@@ -1,6 +1,6 @@
 // Run an individual illustration, producing a ledger.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ledgervalues.hpp b/ledgervalues.hpp
index d981aa9..0d29aca 100644
--- a/ledgervalues.hpp
+++ b/ledgervalues.hpp
@@ -1,6 +1,6 @@
 // Run an individual illustration, producing a ledger.
 //
-// Copyright (C) 1998, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/license.cpp b/license.cpp
index d244638..686e0cb 100644
--- a/license.cpp
+++ b/license.cpp
@@ -1,6 +1,6 @@
 // The GPL and the notices it requires.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
@@ -53,7 +53,7 @@ char const license_html[] =
 char const notices_text[] =
     "'Let me illustrate...' creates life insurance illustrations.\n"
     "\n"
-    "Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,\n" /**/ 
"2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,\n" /**/ "2016, 
2017 Gregory W. Chicares.\n"
+    "Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,\n" /**/ 
"2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,\n" /**/ "2016, 
2017, 2018 Gregory W. Chicares.\n"
     "\n"
     "This program is free software; you can redistribute it and/or\n"
     "modify it under the terms of the GNU General Public License\n"
diff --git a/license.hpp b/license.hpp
index d22add8..4c3207a 100644
--- a/license.hpp
+++ b/license.hpp
@@ -1,6 +1,6 @@
 // The GPL and the notices it requires.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/lmi.cpp b/lmi.cpp
index 34fe1f5..90c3702 100644
--- a/lmi.cpp
+++ b/lmi.cpp
@@ -1,6 +1,6 @@
 // Production versus the antediluvian fork.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/lmi.hpp b/lmi.hpp
index 4134197..2390bbf 100644
--- a/lmi.hpp
+++ b/lmi.hpp
@@ -1,6 +1,6 @@
 // Production versus the antediluvian fork.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/lmi_msw_res.rc b/lmi_msw_res.rc
index d5f7a6b..9e2199c 100644
--- a/lmi_msw_res.rc
+++ b/lmi_msw_res.rc
@@ -1,6 +1,6 @@
 // Trivial msw resource file for wxWindows.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/loads.cpp b/loads.cpp
index 9754aff..ad27c89 100644
--- a/loads.cpp
+++ b/loads.cpp
@@ -1,6 +1,6 @@
 // Loads and expense charges.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/loads.hpp b/loads.hpp
index 9dee505..a680529 100644
--- a/loads.hpp
+++ b/loads.hpp
@@ -1,6 +1,6 @@
 // Loads and expense charges.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/loads_impl.hpp b/loads_impl.hpp
index cd55d59..43d4202 100644
--- a/loads_impl.hpp
+++ b/loads_impl.hpp
@@ -1,6 +1,6 @@
 // Loads and expense charges: arcana.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/loads_test.cpp b/loads_test.cpp
index 1f3c0af..51e883f 100644
--- a/loads_test.cpp
+++ b/loads_test.cpp
@@ -1,6 +1,6 @@
 // Loads and expense charges--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/local_options.sh b/local_options.sh
index 51fa5b8..cee0ce8 100755
--- a/local_options.sh
+++ b/local_options.sh
@@ -2,7 +2,7 @@
 
 # Conveniently save commonly-used options.
 
-# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/main_cgi.cpp b/main_cgi.cpp
index f266ec1..ea34bf1 100644
--- a/main_cgi.cpp
+++ b/main_cgi.cpp
@@ -1,6 +1,6 @@
 // Common gateway interface using gnu cgicc: a simplistic demo.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_cli.cpp b/main_cli.cpp
index f690a01..8a0367e 100644
--- a/main_cli.cpp
+++ b/main_cli.cpp
@@ -1,6 +1,6 @@
 // Life insurance illustrations: command-line interface.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_common.cpp b/main_common.cpp
index 58c897e..a6b2366 100644
--- a/main_common.cpp
+++ b/main_common.cpp
@@ -1,6 +1,6 @@
 // Startup code common to all interfaces.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_common.hpp b/main_common.hpp
index 27399f7..b9b2e0b 100644
--- a/main_common.hpp
+++ b/main_common.hpp
@@ -1,6 +1,6 @@
 // Startup code common to all interfaces.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_common_non_wx.cpp b/main_common_non_wx.cpp
index ba928d4..4eac576 100644
--- a/main_common_non_wx.cpp
+++ b/main_common_non_wx.cpp
@@ -1,6 +1,6 @@
 // Startup code common to all interfaces except wx.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_wx.cpp b/main_wx.cpp
index 751f723..8a96920 100644
--- a/main_wx.cpp
+++ b/main_wx.cpp
@@ -1,6 +1,6 @@
 // Main file for life insurance illustrations with wx interface.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/main_wx_test.cpp b/main_wx_test.cpp
index f96aef8..28b7211 100644
--- a/main_wx_test.cpp
+++ b/main_wx_test.cpp
@@ -1,6 +1,6 @@
 // Main file for automated testing of wx interface.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/map_lookup.hpp b/map_lookup.hpp
index da54123..c110220 100644
--- a/map_lookup.hpp
+++ b/map_lookup.hpp
@@ -1,6 +1,6 @@
 // Look up a value in a std::map.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/map_lookup_test.cpp b/map_lookup_test.cpp
index 043a8cf..0ee60e0 100644
--- a/map_lookup_test.cpp
+++ b/map_lookup_test.cpp
@@ -1,6 +1,6 @@
 // Look up a value in a std::map--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/materially_equal.hpp b/materially_equal.hpp
index 0097715..aebbf3c 100644
--- a/materially_equal.hpp
+++ b/materially_equal.hpp
@@ -1,6 +1,6 @@
 // Test material equality of floating-point values.
 //
-// Copyright (C) 1998, 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/materially_equal_test.cpp b/materially_equal_test.cpp
index 40faf4b..be54332 100644
--- a/materially_equal_test.cpp
+++ b/materially_equal_test.cpp
@@ -1,6 +1,6 @@
 // Test material equality of floating-point values--unit test.
 //
-// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/math_functors.hpp b/math_functors.hpp
index d12a8fc..7cba25d 100644
--- a/math_functors.hpp
+++ b/math_functors.hpp
@@ -1,6 +1,6 @@
 // Miscellaneous mathematical operations as function objects.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/math_functors_test.cpp b/math_functors_test.cpp
index a9efb23..4c799bc 100644
--- a/math_functors_test.cpp
+++ b/math_functors_test.cpp
@@ -1,6 +1,6 @@
 // Miscellaneous mathematical operations as function objects--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum.cpp b/mc_enum.cpp
index 08ed9f8..8ea9491 100644
--- a/mc_enum.cpp
+++ b/mc_enum.cpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum.hpp b/mc_enum.hpp
index 9870c85..ea0ba06 100644
--- a/mc_enum.hpp
+++ b/mc_enum.hpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum.tpp b/mc_enum.tpp
index addc70a..c2ff2f0 100644
--- a/mc_enum.tpp
+++ b/mc_enum.tpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_aux.hpp b/mc_enum_aux.hpp
index 585bd0f..359705b 100644
--- a/mc_enum_aux.hpp
+++ b/mc_enum_aux.hpp
@@ -1,6 +1,6 @@
 // Auxiliary functions for Mapped Constrained Enumerations.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_fwd.hpp b/mc_enum_fwd.hpp
index 89a806d..d21e61c 100644
--- a/mc_enum_fwd.hpp
+++ b/mc_enum_fwd.hpp
@@ -1,6 +1,6 @@
 // Forward declaration of Mapped Constrained Enumeration template.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_metadata.hpp b/mc_enum_metadata.hpp
index 68affe0..8abdaf2 100644
--- a/mc_enum_metadata.hpp
+++ b/mc_enum_metadata.hpp
@@ -1,6 +1,6 @@
 // Metadata for string-Mapped, value-Constrained Enumerations.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_test.cpp b/mc_enum_test.cpp
index fd7ecc3..5d4ede4 100644
--- a/mc_enum_test.cpp
+++ b/mc_enum_test.cpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_test_aux.cpp b/mc_enum_test_aux.cpp
index bc4ded1..db9b599 100644
--- a/mc_enum_test_aux.cpp
+++ b/mc_enum_test_aux.cpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_test_aux.hpp b/mc_enum_test_aux.hpp
index 85e6c55..06a0dea 100644
--- a/mc_enum_test_aux.hpp
+++ b/mc_enum_test_aux.hpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_test_aux_enums.hpp b/mc_enum_test_aux_enums.hpp
index b7594d2..fe2990f 100644
--- a/mc_enum_test_aux_enums.hpp
+++ b/mc_enum_test_aux_enums.hpp
@@ -1,6 +1,6 @@
 // M C Enums: string-Mapped, value-Constrained Enumerations: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_type_enums.hpp b/mc_enum_type_enums.hpp
index 452aa2c..fc613d1 100644
--- a/mc_enum_type_enums.hpp
+++ b/mc_enum_type_enums.hpp
@@ -1,6 +1,6 @@
 // Plain enumerators for specific mc_enum types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_types.cpp b/mc_enum_types.cpp
index 477f4aa..b8f06d4 100644
--- a/mc_enum_types.cpp
+++ b/mc_enum_types.cpp
@@ -1,6 +1,6 @@
 // Instantiation of specific mc_enum types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_types.hpp b/mc_enum_types.hpp
index 5ac931f..e420d7d 100644
--- a/mc_enum_types.hpp
+++ b/mc_enum_types.hpp
@@ -1,6 +1,6 @@
 // Declaration of specific mc_enum types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_types.xpp b/mc_enum_types.xpp
index 0dee4dd..6d3298f 100644
--- a/mc_enum_types.xpp
+++ b/mc_enum_types.xpp
@@ -1,6 +1,6 @@
 // Macros for specific mc_enum types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_types_aux.cpp b/mc_enum_types_aux.cpp
index abbb8ee..bcee35d 100644
--- a/mc_enum_types_aux.cpp
+++ b/mc_enum_types_aux.cpp
@@ -1,6 +1,6 @@
 // Auxiliary functions for specific mc_enum types.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mc_enum_types_aux.hpp b/mc_enum_types_aux.hpp
index 9401af4..436e240 100644
--- a/mc_enum_types_aux.hpp
+++ b/mc_enum_types_aux.hpp
@@ -1,6 +1,6 @@
 // Auxiliary functions for specific mc_enum types.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/md5.cpp b/md5.cpp
index f79b299..b82c588 100644
--- a/md5.cpp
+++ b/md5.cpp
@@ -25,7 +25,7 @@
 /* 2003-02 GWC got this code from
  *   http://www.nondot.org/gcc/md5_8c-source.html
  * and modified it as indicated below by initials 'GWC'. Modifications are
- *   Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares
+ *   Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares
  * and licensed under the same terms as the original, as given above.
  * This is a derived work. Any defect in it should not reflect on
  * Ulrich Drepper's reputation.
diff --git a/md5.hpp b/md5.hpp
index bac2522..fb81257 100644
--- a/md5.hpp
+++ b/md5.hpp
@@ -22,7 +22,7 @@
 /* 2003-02 GWC got this code from
  *   http://www.nondot.org/gcc/md5_8h-source.html
  * and modified it as indicated below by initials 'GWC'. Modifications are
- *   Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares
+ *   Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares
  * and licensed under the same terms as the original, as given above.
  * This is a derived work. Any defect in it should not reflect on
  * Ulrich Drepper's reputation.
diff --git a/mec.xrc b/mec.xrc
index 07e4874..a8424b5 100644
--- a/mec.xrc
+++ b/mec.xrc
@@ -5,7 +5,7 @@
 <!--
     wxWindows xml input-notebook resources for MEC testing.
 
-    Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+    Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/mec_document.cpp b/mec_document.cpp
index 62b35d7..e750a67 100644
--- a/mec_document.cpp
+++ b/mec_document.cpp
@@ -1,6 +1,6 @@
 // Document class for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_document.hpp b/mec_document.hpp
index 9242d2b..470a782 100644
--- a/mec_document.hpp
+++ b/mec_document.hpp
@@ -1,6 +1,6 @@
 // Document class for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_input.cpp b/mec_input.cpp
index 7e9e1b5..234d937 100644
--- a/mec_input.cpp
+++ b/mec_input.cpp
@@ -1,6 +1,6 @@
 // MVC Model for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_input.hpp b/mec_input.hpp
index 5ff924c..c216d1c 100644
--- a/mec_input.hpp
+++ b/mec_input.hpp
@@ -1,6 +1,6 @@
 // MVC Model for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_server.cpp b/mec_server.cpp
index 4d9ea86..c1871e2 100644
--- a/mec_server.cpp
+++ b/mec_server.cpp
@@ -1,6 +1,6 @@
 // MEC-testing server.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_server.hpp b/mec_server.hpp
index 385d726..b7cf9c8 100644
--- a/mec_server.hpp
+++ b/mec_server.hpp
@@ -1,6 +1,6 @@
 // MEC-testing server.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_state.cpp b/mec_state.cpp
index 3b75155..4963444 100644
--- a/mec_state.cpp
+++ b/mec_state.cpp
@@ -1,6 +1,6 @@
 // Transient state of MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_state.hpp b/mec_state.hpp
index 38a96c8..371de66 100644
--- a/mec_state.hpp
+++ b/mec_state.hpp
@@ -1,6 +1,6 @@
 // Transient state of MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_view.cpp b/mec_view.cpp
index fdebc40..a937461 100644
--- a/mec_view.cpp
+++ b/mec_view.cpp
@@ -1,6 +1,6 @@
 // Document view for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_view.hpp b/mec_view.hpp
index 67185bf..6b7fa21 100644
--- a/mec_view.hpp
+++ b/mec_view.hpp
@@ -1,6 +1,6 @@
 // Document view for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_xml_document.cpp b/mec_xml_document.cpp
index 592f291..123cb90 100644
--- a/mec_xml_document.cpp
+++ b/mec_xml_document.cpp
@@ -1,6 +1,6 @@
 // xml document for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mec_xml_document.hpp b/mec_xml_document.hpp
index 4aa0739..3cddcdf 100644
--- a/mec_xml_document.hpp
+++ b/mec_xml_document.hpp
@@ -1,6 +1,6 @@
 // xml document for MEC testing.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/menu_commands.html b/menu_commands.html
index 7b30dc4..f4d3b4d 100644
--- a/menu_commands.html
+++ b/menu_commands.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -422,7 +422,7 @@ Show copyright, license, and version.
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/menus.xrc b/menus.xrc
index a534721..299e9c4 100644
--- a/menus.xrc
+++ b/menus.xrc
@@ -5,7 +5,7 @@
 <!--
     Life insurance illustrations: wxWindows xml resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/miscellany.cpp b/miscellany.cpp
index 62c801d..c0cbdb9 100644
--- a/miscellany.cpp
+++ b/miscellany.cpp
@@ -1,6 +1,6 @@
 // Miscellaneous functions.
 //
-// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/miscellany.hpp b/miscellany.hpp
index 04e91ff..3cdab9d 100644
--- a/miscellany.hpp
+++ b/miscellany.hpp
@@ -1,6 +1,6 @@
 // Miscellaneous functions.
 //
-// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/miscellany_test.cpp b/miscellany_test.cpp
index aac3605..e55436c 100644
--- a/miscellany_test.cpp
+++ b/miscellany_test.cpp
@@ -1,6 +1,6 @@
 // Miscellaneous functions--unit test.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mortality_rates.cpp b/mortality_rates.cpp
index 1734d1c..52499c1 100644
--- a/mortality_rates.cpp
+++ b/mortality_rates.cpp
@@ -1,6 +1,6 @@
 // Mortality rates.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mortality_rates.hpp b/mortality_rates.hpp
index 778155f..7a38906 100644
--- a/mortality_rates.hpp
+++ b/mortality_rates.hpp
@@ -1,6 +1,6 @@
 // Mortality rates.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mortality_rates_fetch.cpp b/mortality_rates_fetch.cpp
index fec4db5..1595bcf 100644
--- a/mortality_rates_fetch.cpp
+++ b/mortality_rates_fetch.cpp
@@ -1,6 +1,6 @@
 // Mortality rates.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mortality_rates_test.cpp b/mortality_rates_test.cpp
index bf478a8..733a9bb 100644
--- a/mortality_rates_test.cpp
+++ b/mortality_rates_test.cpp
@@ -1,6 +1,6 @@
 // Mortality rates--unit test.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/msw_common.make b/msw_common.make
index e7fa349..05afe73 100644
--- a/msw_common.make
+++ b/msw_common.make
@@ -1,6 +1,6 @@
 # Platform specifics: msw, shared by all subplatforms.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/msw_cygwin.make b/msw_cygwin.make
index d95b01a..08db8c1 100644
--- a/msw_cygwin.make
+++ b/msw_cygwin.make
@@ -1,6 +1,6 @@
 # Platform specifics: msw (cygwin) with MinGW-w64 toolchain.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/msw_generic.make b/msw_generic.make
index 510c78e..b027b58 100644
--- a/msw_generic.make
+++ b/msw_generic.make
@@ -1,6 +1,6 @@
 # Platform specifics: *nix cross for msw with MinGW-w64 toolchain.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/msw_workarounds.cpp b/msw_workarounds.cpp
index 865b8fa..0e7d64b 100644
--- a/msw_workarounds.cpp
+++ b/msw_workarounds.cpp
@@ -1,6 +1,6 @@
 // Preload msw dlls to work around an operating-system defect.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/msw_workarounds.hpp b/msw_workarounds.hpp
index 5943099..5893ace 100644
--- a/msw_workarounds.hpp
+++ b/msw_workarounds.hpp
@@ -1,6 +1,6 @@
 // Preload msw dlls to work around an operating-system defect.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_any.cpp b/multidimgrid_any.cpp
index 11b8d59..a9d89af 100644
--- a/multidimgrid_any.cpp
+++ b/multidimgrid_any.cpp
@@ -1,6 +1,6 @@
 // A control for editing multidimensional data and supporting classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_any.hpp b/multidimgrid_any.hpp
index 05828ee..ce799a9 100644
--- a/multidimgrid_any.hpp
+++ b/multidimgrid_any.hpp
@@ -1,6 +1,6 @@
 // A control for editing multidimensional data and supporting classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_safe.hpp b/multidimgrid_safe.hpp
index b2a91da..6920031 100644
--- a/multidimgrid_safe.hpp
+++ b/multidimgrid_safe.hpp
@@ -1,6 +1,6 @@
 // A control for editing multidimensional data and supporting classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_safe.tpp b/multidimgrid_safe.tpp
index a91d337..a1f8a82 100644
--- a/multidimgrid_safe.tpp
+++ b/multidimgrid_safe.tpp
@@ -1,6 +1,6 @@
 // A control for editing multidimensional data and supporting classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_tools.cpp b/multidimgrid_tools.cpp
index 252a666..8c8be7b 100644
--- a/multidimgrid_tools.cpp
+++ b/multidimgrid_tools.cpp
@@ -1,6 +1,6 @@
 // Support classes for editing multidimensional data.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multidimgrid_tools.hpp b/multidimgrid_tools.hpp
index 74b31ef..f00585f 100644
--- a/multidimgrid_tools.hpp
+++ b/multidimgrid_tools.hpp
@@ -1,6 +1,6 @@
 // Support classes for editing multidimensional data.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document.cpp b/multiple_cell_document.cpp
index 6fc49d3..f721add 100644
--- a/multiple_cell_document.cpp
+++ b/multiple_cell_document.cpp
@@ -1,6 +1,6 @@
 // xml document for multiple-cell illustrations.
 //
-// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document.hpp b/multiple_cell_document.hpp
index c466963..116f204 100644
--- a/multiple_cell_document.hpp
+++ b/multiple_cell_document.hpp
@@ -1,6 +1,6 @@
 // xml document for multiple-cell illustrations.
 //
-// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document.rnc b/multiple_cell_document.rnc
index 9191c89..a6d54c1 100644
--- a/multiple_cell_document.rnc
+++ b/multiple_cell_document.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for '.cns' files (class multiple_cell_document).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document.xsd b/multiple_cell_document.xsd
index f5582f0..455bdfa 100644
--- a/multiple_cell_document.xsd
+++ b/multiple_cell_document.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for '.cns' files (class multiple_cell_document).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document_01.rnc b/multiple_cell_document_01.rnc
index b62b771..6da56f3 100644
--- a/multiple_cell_document_01.rnc
+++ b/multiple_cell_document_01.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for '.cns' files (class multiple_cell_document).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/multiple_cell_document_01.xsd b/multiple_cell_document_01.xsd
index ccac129..d84641c 100644
--- a/multiple_cell_document_01.xsd
+++ b/multiple_cell_document_01.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for '.cns' files (class multiple_cell_document).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_controller.cpp b/mvc_controller.cpp
index 59b83e2..528f9b9 100644
--- a/mvc_controller.cpp
+++ b/mvc_controller.cpp
@@ -1,6 +1,6 @@
 // MVC Controller.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_controller.hpp b/mvc_controller.hpp
index a683bc5..f4624be 100644
--- a/mvc_controller.hpp
+++ b/mvc_controller.hpp
@@ -1,6 +1,6 @@
 // MVC Controller.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_controller.tpp b/mvc_controller.tpp
index 45535ca..8d085d4 100644
--- a/mvc_controller.tpp
+++ b/mvc_controller.tpp
@@ -1,6 +1,6 @@
 // MVC Controller.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_model.cpp b/mvc_model.cpp
index dc6242d..3394893 100644
--- a/mvc_model.cpp
+++ b/mvc_model.cpp
@@ -1,6 +1,6 @@
 // MVC Model base class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_model.hpp b/mvc_model.hpp
index 528154e..437d0b8 100644
--- a/mvc_model.hpp
+++ b/mvc_model.hpp
@@ -1,6 +1,6 @@
 // MVC Model base class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_view.cpp b/mvc_view.cpp
index c880fbf..3110c19 100644
--- a/mvc_view.cpp
+++ b/mvc_view.cpp
@@ -1,6 +1,6 @@
 // MVC View base class.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/mvc_view.hpp b/mvc_view.hpp
index 052a54e..f5e00e8 100644
--- a/mvc_view.hpp
+++ b/mvc_view.hpp
@@ -1,6 +1,6 @@
 // MVC View base class.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_db.cpp b/my_db.cpp
index ee0ed3e..dee4349 100644
--- a/my_db.cpp
+++ b/my_db.cpp
@@ -1,6 +1,6 @@
 // Product-specific fund data.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_fund.cpp b/my_fund.cpp
index 137784b..91cace3 100644
--- a/my_fund.cpp
+++ b/my_fund.cpp
@@ -1,6 +1,6 @@
 // Product-specific fund data.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_prod.cpp b/my_prod.cpp
index 380baa8..e4e2460 100644
--- a/my_prod.cpp
+++ b/my_prod.cpp
@@ -1,6 +1,6 @@
 // Product-specific string data.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_proem.cpp b/my_proem.cpp
index d2b6258..d7fa773 100644
--- a/my_proem.cpp
+++ b/my_proem.cpp
@@ -1,6 +1,6 @@
 // Proem for xml product files.
 //
-// Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_proem.hpp b/my_proem.hpp
index feca3d3..7a7968e 100644
--- a/my_proem.hpp
+++ b/my_proem.hpp
@@ -1,6 +1,6 @@
 // Proem for xml product files.
 //
-// Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_rnd.cpp b/my_rnd.cpp
index 89e9d7a..9e27d71 100644
--- a/my_rnd.cpp
+++ b/my_rnd.cpp
@@ -1,6 +1,6 @@
 // Product-specific fund data.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_test_coding_rules.cpp b/my_test_coding_rules.cpp
index 938303b..f286eff 100644
--- a/my_test_coding_rules.cpp
+++ b/my_test_coding_rules.cpp
@@ -1,6 +1,6 @@
 // Test files for consistency with various rules: private taboos.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/my_tier.cpp b/my_tier.cpp
index 91242aa..1ba8b4f 100644
--- a/my_tier.cpp
+++ b/my_tier.cpp
@@ -1,6 +1,6 @@
 // Product-specific fund data.
 //
-// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/name_value_pairs.cpp b/name_value_pairs.cpp
index 1d22cc5..704f6ab 100644
--- a/name_value_pairs.cpp
+++ b/name_value_pairs.cpp
@@ -1,6 +1,6 @@
 // Manage files of name-value pairs.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/name_value_pairs.hpp b/name_value_pairs.hpp
index eaf714b..7389887 100644
--- a/name_value_pairs.hpp
+++ b/name_value_pairs.hpp
@@ -1,6 +1,6 @@
 // Manage files of name-value pairs.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/name_value_pairs_test.cpp b/name_value_pairs_test.cpp
index c13bcca..d4940e9 100644
--- a/name_value_pairs_test.cpp
+++ b/name_value_pairs_test.cpp
@@ -1,6 +1,6 @@
 // Manage files of name-value pairs--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/nasd.xsl b/nasd.xsl
index fe203b1..0a22b5a 100644
--- a/nasd.xsl
+++ b/nasd.xsl
@@ -2,7 +2,7 @@
 <!--
     Life insurance illustrations.
 
-    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/ncnnnpnn.hpp b/ncnnnpnn.hpp
index 59ac0c4..75df26c 100644
--- a/ncnnnpnn.hpp
+++ b/ncnnnpnn.hpp
@@ -1,6 +1,6 @@
 // Format NNNN.NNN --> "N,NNN.NN".
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/ncnnnpnn_test.cpp b/ncnnnpnn_test.cpp
index 3c75819..4e8c59f 100644
--- a/ncnnnpnn_test.cpp
+++ b/ncnnnpnn_test.cpp
@@ -1,6 +1,6 @@
 // Format NNNN.NNN --> "N,NNN.NN": unit test.
 //
-// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/null_stream.cpp b/null_stream.cpp
index 1a18f84..fb74a46 100644
--- a/null_stream.cpp
+++ b/null_stream.cpp
@@ -1,6 +1,6 @@
 // Stream and stream buffer that discard output like the null device.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/null_stream.hpp b/null_stream.hpp
index 890d2f8..bfadbc2 100644
--- a/null_stream.hpp
+++ b/null_stream.hpp
@@ -1,6 +1,6 @@
 // Stream and stream buffer that discard output like the null device.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/numeric_io_cast.hpp b/numeric_io_cast.hpp
index d968768..47cfa7f 100644
--- a/numeric_io_cast.hpp
+++ b/numeric_io_cast.hpp
@@ -1,6 +1,6 @@
 // Decimal conversion between std::string and arithmetic types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/numeric_io_test.cpp b/numeric_io_test.cpp
index 08825d0..97eb4e1 100644
--- a/numeric_io_test.cpp
+++ b/numeric_io_test.cpp
@@ -1,6 +1,6 @@
 // Decimal conversion between std::string and arithmetic types--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/numeric_io_traits.hpp b/numeric_io_traits.hpp
index a49b4e0..1b9ecbf 100644
--- a/numeric_io_traits.hpp
+++ b/numeric_io_traits.hpp
@@ -1,6 +1,6 @@
 // Traits for conversion between arithmetic types and strings.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/objects.make b/objects.make
index 908c45b..aeeb181 100644
--- a/objects.make
+++ b/objects.make
@@ -1,6 +1,6 @@
 # Makefile: object lists.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/oecumenic_enumerations.hpp b/oecumenic_enumerations.hpp
index e79016a..ccbff78 100644
--- a/oecumenic_enumerations.hpp
+++ b/oecumenic_enumerations.hpp
@@ -1,6 +1,6 @@
 // Enumerative types used sparsim across subsystems.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/outlay.cpp b/outlay.cpp
index 0407850..893d6c3 100644
--- a/outlay.cpp
+++ b/outlay.cpp
@@ -1,6 +1,6 @@
 // Premiums, loans, and withdrawals.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/outlay.hpp b/outlay.hpp
index 7943b7f..391b1e1 100644
--- a/outlay.hpp
+++ b/outlay.hpp
@@ -1,6 +1,6 @@
 // Premiums, loans, and withdrawals.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/pasting_to_a_census.html b/pasting_to_a_census.html
index d539b1f..59dc3bc 100644
--- a/pasting_to_a_census.html
+++ b/pasting_to_a_census.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -168,7 +168,7 @@ You can use these column headers:
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/path_utility.cpp b/path_utility.cpp
index 1296ab6..b230f40 100644
--- a/path_utility.cpp
+++ b/path_utility.cpp
@@ -1,6 +1,6 @@
 // Path utilities.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/path_utility.hpp b/path_utility.hpp
index 6ad44c1..67cf1c1 100644
--- a/path_utility.hpp
+++ b/path_utility.hpp
@@ -1,6 +1,6 @@
 // Path utilities.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/path_utility_test.cpp b/path_utility_test.cpp
index 4852aab..525fa26 100644
--- a/path_utility_test.cpp
+++ b/path_utility_test.cpp
@@ -1,6 +1,6 @@
 // Path utilities--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/pchfile.hpp b/pchfile.hpp
index b06c9d2..9dd9f1f 100644
--- a/pchfile.hpp
+++ b/pchfile.hpp
@@ -1,6 +1,6 @@
 // Precompiled header file for general use.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/pchfile_wx.hpp b/pchfile_wx.hpp
index 40d166d..6f775b0 100644
--- a/pchfile_wx.hpp
+++ b/pchfile_wx.hpp
@@ -1,6 +1,6 @@
 // Precompiled header file for use with wx.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/pchlist.hpp b/pchlist.hpp
index c1b8527..5efc688 100644
--- a/pchlist.hpp
+++ b/pchlist.hpp
@@ -1,6 +1,6 @@
 // List of headers to precompile for general use.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/pchlist_wx.hpp b/pchlist_wx.hpp
index 5011929..a922b6e 100644
--- a/pchlist_wx.hpp
+++ b/pchlist_wx.hpp
@@ -1,6 +1,6 @@
 // List of headers to precompile for use with wx.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/platform_dependent.hpp b/platform_dependent.hpp
index 99090b0..1aa6b48 100644
--- a/platform_dependent.hpp
+++ b/platform_dependent.hpp
@@ -1,6 +1,6 @@
 // Functions not in C++98 but available in a platform-dependent way.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/policy_document.cpp b/policy_document.cpp
index 5494513..e90d436 100644
--- a/policy_document.cpp
+++ b/policy_document.cpp
@@ -1,6 +1,6 @@
 // Document class for product data.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/policy_document.hpp b/policy_document.hpp
index 1c15342..3ddaff8 100644
--- a/policy_document.hpp
+++ b/policy_document.hpp
@@ -1,6 +1,6 @@
 // Document class for product data.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/policy_view.cpp b/policy_view.cpp
index c155e72..90915e2 100644
--- a/policy_view.cpp
+++ b/policy_view.cpp
@@ -1,6 +1,6 @@
 // Product data manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/policy_view.hpp b/policy_view.hpp
index d9c828a..9af665c 100644
--- a/policy_view.hpp
+++ b/policy_view.hpp
@@ -1,6 +1,6 @@
 // Product data manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/policy_view.xrc b/policy_view.xrc
index 0563d4e..1f2cc54 100644
--- a/policy_view.xrc
+++ b/policy_view.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml resources for policy editor.
 
-    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/posix_fhs.make b/posix_fhs.make
index 3522561..688fb94 100644
--- a/posix_fhs.make
+++ b/posix_fhs.make
@@ -1,7 +1,7 @@
 # Platform specifics: GNU/Linux and systems that equivalently comply
 # with POSIX and the Filesystem Hierarchy Standard.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/preferences_model.cpp b/preferences_model.cpp
index f4b1f15..48d76c8 100644
--- a/preferences_model.cpp
+++ b/preferences_model.cpp
@@ -1,6 +1,6 @@
 // MVC Model for user preferences.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/preferences_model.hpp b/preferences_model.hpp
index dcd82c2..dbf25da 100644
--- a/preferences_model.hpp
+++ b/preferences_model.hpp
@@ -1,6 +1,6 @@
 // MVC Model for user preferences.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/preferences_view.cpp b/preferences_view.cpp
index 64954b5..b734f1e 100644
--- a/preferences_view.cpp
+++ b/preferences_view.cpp
@@ -1,6 +1,6 @@
 // MVC View for user preferences.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/preferences_view.hpp b/preferences_view.hpp
index 2f1876d..8c873ac 100644
--- a/preferences_view.hpp
+++ b/preferences_view.hpp
@@ -1,6 +1,6 @@
 // MVC View for user preferences.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/preferences_view.xrc b/preferences_view.xrc
index 482bb11..0858cb6 100644
--- a/preferences_view.xrc
+++ b/preferences_view.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml resources for user preferences.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/premium_tax.cpp b/premium_tax.cpp
index 8cdafb6..3d771e6 100644
--- a/premium_tax.cpp
+++ b/premium_tax.cpp
@@ -1,6 +1,6 @@
 // Premium tax.
 //
-// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/premium_tax.hpp b/premium_tax.hpp
index b37724f..310c5ab 100644
--- a/premium_tax.hpp
+++ b/premium_tax.hpp
@@ -1,6 +1,6 @@
 // Premium tax.
 //
-// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/premium_tax_test.cpp b/premium_tax_test.cpp
index 264e16e..c17f6ee 100644
--- a/premium_tax_test.cpp
+++ b/premium_tax_test.cpp
@@ -1,6 +1,6 @@
 // Premium tax--unit test.
 //
-// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/previewframe_ex.cpp b/previewframe_ex.cpp
index a8cded1..e723892 100644
--- a/previewframe_ex.cpp
+++ b/previewframe_ex.cpp
@@ -1,6 +1,6 @@
 // Customize implementation details of library class wxPreviewFrame.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/previewframe_ex.hpp b/previewframe_ex.hpp
index 53ab238..7a8eba9 100644
--- a/previewframe_ex.hpp
+++ b/previewframe_ex.hpp
@@ -1,6 +1,6 @@
 // Customize implementation details of library class wxPreviewFrame.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/print_matrix.hpp b/print_matrix.hpp
index 4775913..504381b 100644
--- a/print_matrix.hpp
+++ b/print_matrix.hpp
@@ -1,6 +1,6 @@
 // Print a matrix more or less as APL would.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/print_matrix_test.cpp b/print_matrix_test.cpp
index c97a7d5..3ca5182 100644
--- a/print_matrix_test.cpp
+++ b/print_matrix_test.cpp
@@ -1,6 +1,6 @@
 // Print a matrix more or less as APL would--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/product_data.cpp b/product_data.cpp
index 7f8a3a0..f4b972d 100644
--- a/product_data.cpp
+++ b/product_data.cpp
@@ -1,6 +1,6 @@
 // Product data representable as strings.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/product_data.hpp b/product_data.hpp
index 1889a08..e8ecbaa 100644
--- a/product_data.hpp
+++ b/product_data.hpp
@@ -1,6 +1,6 @@
 // Product data representable as strings.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/product_editor.cpp b/product_editor.cpp
index aad6158..03dc399 100644
--- a/product_editor.cpp
+++ b/product_editor.cpp
@@ -1,6 +1,6 @@
 // Common code used in various product editor document/view classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/product_editor.hpp b/product_editor.hpp
index 1bdcca4..9a38b09 100644
--- a/product_editor.hpp
+++ b/product_editor.hpp
@@ -1,6 +1,6 @@
 // Common code used in various product editor document/view classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/product_file_test.cpp b/product_file_test.cpp
index 1c8f4ea..c89f70e 100644
--- a/product_file_test.cpp
+++ b/product_file_test.cpp
@@ -1,6 +1,6 @@
 // Product files--unit test.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter.cpp b/progress_meter.cpp
index b3f7c84..eb1e155 100644
--- a/progress_meter.cpp
+++ b/progress_meter.cpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations, optionally letting users cancel them.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter.hpp b/progress_meter.hpp
index a062717..f675626 100644
--- a/progress_meter.hpp
+++ b/progress_meter.hpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations, optionally letting users cancel them.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter_cgi.cpp b/progress_meter_cgi.cpp
index 9477e81..3a7075e 100644
--- a/progress_meter_cgi.cpp
+++ b/progress_meter_cgi.cpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations--common gateway interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter_cli.cpp b/progress_meter_cli.cpp
index 571aa8e..c543ddb 100644
--- a/progress_meter_cli.cpp
+++ b/progress_meter_cli.cpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations--command-line interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter_test.cpp b/progress_meter_test.cpp
index 4362f09..348c826 100644
--- a/progress_meter_test.cpp
+++ b/progress_meter_test.cpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/progress_meter_wx.cpp b/progress_meter_wx.cpp
index 3621d37..b04116e 100644
--- a/progress_meter_wx.cpp
+++ b/progress_meter_wx.cpp
@@ -1,6 +1,6 @@
 // Show progress on lengthy operations--wx interface.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rate_table.cpp b/rate_table.cpp
index 89cef5a..4b63a42 100644
--- a/rate_table.cpp
+++ b/rate_table.cpp
@@ -1,6 +1,6 @@
 // Tools for working with SOA tables represented in binary format.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rate_table.hpp b/rate_table.hpp
index 780078a..6776457 100644
--- a/rate_table.hpp
+++ b/rate_table.hpp
@@ -1,6 +1,6 @@
 // Tools for working with SOA tables represented in binary format.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rate_table_test.cpp b/rate_table_test.cpp
index 732f01c..1f25200 100644
--- a/rate_table_test.cpp
+++ b/rate_table_test.cpp
@@ -1,6 +1,6 @@
 // SOA tables represented in binary SOA format--unit test.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rate_table_tool.cpp b/rate_table_tool.cpp
index d9f3df0..359db16 100644
--- a/rate_table_tool.cpp
+++ b/rate_table_tool.cpp
@@ -1,6 +1,6 @@
 // Life insurance illustrations: SOA mortality table utility.
 //
-// Copyright (C) 2003, 2004, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/reg_d_group.xsl b/reg_d_group.xsl
index 3c8f64e..7c66a65 100644
--- a/reg_d_group.xsl
+++ b/reg_d_group.xsl
@@ -2,7 +2,7 @@
 <!--
     Life insurance illustrations.
 
-    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/reg_d_individual.xsl b/reg_d_individual.xsl
index eb6ef41..d5780dd 100644
--- a/reg_d_individual.xsl
+++ b/reg_d_individual.xsl
@@ -2,7 +2,7 @@
 <!--
     Life insurance illustrations.
 
-    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/regex_test.cpp b/regex_test.cpp
index fc4a0cb..9befb59 100644
--- a/regex_test.cpp
+++ b/regex_test.cpp
@@ -1,6 +1,6 @@
 // Regular expressions--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/round_glibc.cpp b/round_glibc.cpp
index 07a9ebb..dc7c324 100644
--- a/round_glibc.cpp
+++ b/round_glibc.cpp
@@ -1,6 +1,6 @@
 // Standard C round*() from glibc to fix MinGW-w64 defects.
 //
-// Copyright (C) 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/round_test.cpp b/round_test.cpp
index e755795..7aa43bb 100644
--- a/round_test.cpp
+++ b/round_test.cpp
@@ -1,6 +1,6 @@
 // Rounding--unit test.
 //
-// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/round_to.hpp b/round_to.hpp
index e32810d..df6a018 100644
--- a/round_to.hpp
+++ b/round_to.hpp
@@ -1,6 +1,6 @@
 // Rounding.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/round_to_test.cpp b/round_to_test.cpp
index 041c665..f2d7b17 100644
--- a/round_to_test.cpp
+++ b/round_to_test.cpp
@@ -1,6 +1,6 @@
 // Rounding--unit test.
 //
-// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_document.cpp b/rounding_document.cpp
index c7d2e64..694f7e8 100644
--- a/rounding_document.cpp
+++ b/rounding_document.cpp
@@ -1,6 +1,6 @@
 // Document class for Rounding rules.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_document.hpp b/rounding_document.hpp
index fd601ac..23a9540 100644
--- a/rounding_document.hpp
+++ b/rounding_document.hpp
@@ -1,6 +1,6 @@
 // Document class for Rounding rules.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_rules.cpp b/rounding_rules.cpp
index fb4bd48..917a007 100644
--- a/rounding_rules.cpp
+++ b/rounding_rules.cpp
@@ -1,6 +1,6 @@
 // Rounding rules.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_rules.hpp b/rounding_rules.hpp
index 1a3735f..5906901 100644
--- a/rounding_rules.hpp
+++ b/rounding_rules.hpp
@@ -1,6 +1,6 @@
 // Rounding rules.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_view.cpp b/rounding_view.cpp
index d87a889..9ae233c 100644
--- a/rounding_view.cpp
+++ b/rounding_view.cpp
@@ -1,6 +1,6 @@
 // Rounding rules manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_view.hpp b/rounding_view.hpp
index 3e73c63..83db226 100644
--- a/rounding_view.hpp
+++ b/rounding_view.hpp
@@ -1,6 +1,6 @@
 // Rounding rules manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_view.xrc b/rounding_view.xrc
index e4d0088..7d7ac98 100644
--- a/rounding_view.xrc
+++ b/rounding_view.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml resources for rounding rules editor.
 
-    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_view_editor.cpp b/rounding_view_editor.cpp
index 6c69288..68a5ca8 100644
--- a/rounding_view_editor.cpp
+++ b/rounding_view_editor.cpp
@@ -1,6 +1,6 @@
 // Rounding rules manager helper widget.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rounding_view_editor.hpp b/rounding_view_editor.hpp
index d15e855..529c433 100644
--- a/rounding_view_editor.hpp
+++ b/rounding_view_editor.hpp
@@ -1,6 +1,6 @@
 // Rounding rules manager helper widget.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rtti_lmi.hpp b/rtti_lmi.hpp
index e4745f7..bdbe79f 100644
--- a/rtti_lmi.hpp
+++ b/rtti_lmi.hpp
@@ -1,6 +1,6 @@
 // Extensions to C++ run-time type information.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/rtti_lmi_test.cpp b/rtti_lmi_test.cpp
index 0d07430..b75d4b0 100644
--- a/rtti_lmi_test.cpp
+++ b/rtti_lmi_test.cpp
@@ -1,6 +1,6 @@
 // Extensions to C++ run-time type information--unit test.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/safely_dereference_as.hpp b/safely_dereference_as.hpp
index 36c3888..fec09a8 100644
--- a/safely_dereference_as.hpp
+++ b/safely_dereference_as.hpp
@@ -1,6 +1,6 @@
 // Dereference a non-null pointer, optionally downcasting it.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/safely_dereference_as_test.cpp b/safely_dereference_as_test.cpp
index 7faebd9..0cc58f7 100644
--- a/safely_dereference_as_test.cpp
+++ b/safely_dereference_as_test.cpp
@@ -1,6 +1,6 @@
 // Dereference a non-null pointer, optionally downcasting it--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/sandbox_test.cpp b/sandbox_test.cpp
index 401b86d..0ed05ae 100644
--- a/sandbox_test.cpp
+++ b/sandbox_test.cpp
@@ -1,6 +1,6 @@
 // Testing sandbox.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/sequence_input.html b/sequence_input.html
index 6dda192..270196c 100644
--- a/sequence_input.html
+++ b/sequence_input.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -231,7 +231,7 @@ means monthly until the end of the tenth policy year, then 
annual.
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/sigfpe.cpp b/sigfpe.cpp
index b8755d5..78a5ffd 100644
--- a/sigfpe.cpp
+++ b/sigfpe.cpp
@@ -1,6 +1,6 @@
 // Floating-point exception handler.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/sigfpe.hpp b/sigfpe.hpp
index 1ff5ae7..117625e 100644
--- a/sigfpe.hpp
+++ b/sigfpe.hpp
@@ -1,6 +1,6 @@
 // Life insurance illustrations.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document.cpp b/single_cell_document.cpp
index 7102438..8a3f1c6 100644
--- a/single_cell_document.cpp
+++ b/single_cell_document.cpp
@@ -1,6 +1,6 @@
 // xml document for single-cell illustration.
 //
-// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document.hpp b/single_cell_document.hpp
index 81ecfa4..6026c10 100644
--- a/single_cell_document.hpp
+++ b/single_cell_document.hpp
@@ -1,6 +1,6 @@
 // xml document for single-cell illustration.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document.rnc b/single_cell_document.rnc
index d437d76..0394c57 100644
--- a/single_cell_document.rnc
+++ b/single_cell_document.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for '.ill' files (class single_cell_document).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document.xsd b/single_cell_document.xsd
index 5dbde36..e5369d4 100644
--- a/single_cell_document.xsd
+++ b/single_cell_document.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for '.ill' files (class single_cell_document).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document_00.xsd b/single_cell_document_00.xsd
index dcd04c6..367d598 100644
--- a/single_cell_document_00.xsd
+++ b/single_cell_document_00.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for '.ill' files (class single_cell_document).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document_01.rnc b/single_cell_document_01.rnc
index 2be0d0d..b1d3e67 100644
--- a/single_cell_document_01.rnc
+++ b/single_cell_document_01.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for '.ill' files (class single_cell_document).
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/single_cell_document_01.xsd b/single_cell_document_01.xsd
index dcd04c6..367d598 100644
--- a/single_cell_document_01.xsd
+++ b/single_cell_document_01.xsd
@@ -4,7 +4,7 @@
   <!--
     RELAX NG schema for '.ill' files (class single_cell_document).
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/single_choice_popup_menu.cpp b/single_choice_popup_menu.cpp
index b424647..ff53fb5 100644
--- a/single_choice_popup_menu.cpp
+++ b/single_choice_popup_menu.cpp
@@ -1,6 +1,6 @@
 // Single-choice popup menu: a wxGetSingleChoiceIndex alternative.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/single_choice_popup_menu.hpp b/single_choice_popup_menu.hpp
index f965526..bf2b4c6 100644
--- a/single_choice_popup_menu.hpp
+++ b/single_choice_popup_menu.hpp
@@ -1,6 +1,6 @@
 // Single-choice popup menu: a wxGetSingleChoiceIndex alternative.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/skeleton.cpp b/skeleton.cpp
index ff3e07f..169b1e7 100644
--- a/skeleton.cpp
+++ b/skeleton.cpp
@@ -1,6 +1,6 @@
 // Main file for life insurance illustrations with wx interface.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/skeleton.hpp b/skeleton.hpp
index 9c601a2..0d05f16 100644
--- a/skeleton.hpp
+++ b/skeleton.hpp
@@ -1,6 +1,6 @@
 // Main file for life insurance illustrations with wx interface.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/skin.xrc b/skin.xrc
index 1848c5f..cc19d12 100644
--- a/skin.xrc
+++ b/skin.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml input-notebook resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/skin_coli_boli.xrc b/skin_coli_boli.xrc
index 8f2bd3e..32ea768 100644
--- a/skin_coli_boli.xrc
+++ b/skin_coli_boli.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml input-notebook resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/skin_group_carveout.xrc b/skin_group_carveout.xrc
index 7762c17..3391c3c 100644
--- a/skin_group_carveout.xrc
+++ b/skin_group_carveout.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml input-notebook resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/skin_single_premium.xrc b/skin_single_premium.xrc
index 8790ac4..d074a58 100644
--- a/skin_single_premium.xrc
+++ b/skin_single_premium.xrc
@@ -5,7 +5,7 @@
 <!--
     Let me illustrate...: wxWindows xml input-notebook resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/snprintf_test.cpp b/snprintf_test.cpp
index 3730e3d..6f55f96 100644
--- a/snprintf_test.cpp
+++ b/snprintf_test.cpp
@@ -1,6 +1,6 @@
 // Test snprintf() implementations against ISO/IEC 9899 7.19.6.5 .
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/so_attributes.hpp b/so_attributes.hpp
index bd7bc6a..cd00bfa 100644
--- a/so_attributes.hpp
+++ b/so_attributes.hpp
@@ -1,6 +1,6 @@
 // Shared-object visibility (elf) and export-import (msw) attributes.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/solve.cpp b/solve.cpp
index 82c806f..ae19024 100644
--- a/solve.cpp
+++ b/solve.cpp
@@ -1,6 +1,6 @@
 // Solves.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/sort_cell_subelements.xsl b/sort_cell_subelements.xsl
index 95f60d7..31cae3d 100644
--- a/sort_cell_subelements.xsl
+++ b/sort_cell_subelements.xsl
@@ -3,7 +3,7 @@
 <!--
     Sort subelements of a <cell> element.
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/stl_extensions.hpp b/stl_extensions.hpp
index 6174fa3..1d40af2 100644
--- a/stl_extensions.hpp
+++ b/stl_extensions.hpp
@@ -1,6 +1,6 @@
 // SGI extensions to STL.
 //
-// Copyright (C) 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_algorithms.cpp b/stratified_algorithms.cpp
index 8c9ea40..cd2082c 100644
--- a/stratified_algorithms.cpp
+++ b/stratified_algorithms.cpp
@@ -1,6 +1,6 @@
 // Numerical algorithms for stratified rates.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_algorithms.hpp b/stratified_algorithms.hpp
index 351e5c2..60323fc 100644
--- a/stratified_algorithms.hpp
+++ b/stratified_algorithms.hpp
@@ -1,6 +1,6 @@
 // Numerical algorithms for stratified rates.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_algorithms_test.cpp b/stratified_algorithms_test.cpp
index f3fc2e1..252ed47 100644
--- a/stratified_algorithms_test.cpp
+++ b/stratified_algorithms_test.cpp
@@ -1,6 +1,6 @@
 // Numerical algorithms for stratified rates--unit test.
 //
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_charges.cpp b/stratified_charges.cpp
index f9547d2..9dd3299 100644
--- a/stratified_charges.cpp
+++ b/stratified_charges.cpp
@@ -1,6 +1,6 @@
 // Rates that depend on the amount they're muliplied by.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_charges.hpp b/stratified_charges.hpp
index 97f8527..90e27e8 100644
--- a/stratified_charges.hpp
+++ b/stratified_charges.hpp
@@ -1,6 +1,6 @@
 // Rates that depend on the amount they're multiplied by.
 //
-// Copyright (C) 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stratified_charges.xpp b/stratified_charges.xpp
index 59f3c7a..7011696 100644
--- a/stratified_charges.xpp
+++ b/stratified_charges.xpp
@@ -1,6 +1,6 @@
 // Rates that depend on the amount they're muliplied by.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stream_cast.hpp b/stream_cast.hpp
index 2d5d192..af7a46e 100644
--- a/stream_cast.hpp
+++ b/stream_cast.hpp
@@ -1,6 +1,6 @@
 // Convert between types as extractors and inserters do.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/stream_cast_test.cpp b/stream_cast_test.cpp
index fe2c0ba..2e832c9 100644
--- a/stream_cast_test.cpp
+++ b/stream_cast_test.cpp
@@ -1,6 +1,6 @@
 // Convert between types as extractors and inserters do--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/surrchg_rates.cpp b/surrchg_rates.cpp
index a78f532..7b3cabb 100644
--- a/surrchg_rates.cpp
+++ b/surrchg_rates.cpp
@@ -1,6 +1,6 @@
 // Life insurance illustrations: surrender charge rates.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/surrchg_rates.hpp b/surrchg_rates.hpp
index 9195479..4e2a39f 100644
--- a/surrchg_rates.hpp
+++ b/surrchg_rates.hpp
@@ -1,6 +1,6 @@
 // Life insurance illustrations: surrender charge rates.
 //
-// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/system_command.cpp b/system_command.cpp
index c7d3e54..da74d15 100644
--- a/system_command.cpp
+++ b/system_command.cpp
@@ -1,6 +1,6 @@
 // Instruct the operating system to execute a command.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/system_command.hpp b/system_command.hpp
index 5252c37..2f7cfa6 100644
--- a/system_command.hpp
+++ b/system_command.hpp
@@ -1,6 +1,6 @@
 // Instruct the operating system to execute a command.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/system_command_non_wx.cpp b/system_command_non_wx.cpp
index be39bbb..c38ca0b 100644
--- a/system_command_non_wx.cpp
+++ b/system_command_non_wx.cpp
@@ -1,6 +1,6 @@
 // Instruct the operating system to execute a command--non-wx interface.
 //
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/system_command_test.cpp b/system_command_test.cpp
index 827b744..e9a89c3 100644
--- a/system_command_test.cpp
+++ b/system_command_test.cpp
@@ -1,6 +1,6 @@
 // Instruct the operating system to execute a command--unit test.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/system_command_wx.cpp b/system_command_wx.cpp
index 8d071a3..ab008de 100644
--- a/system_command_wx.cpp
+++ b/system_command_wx.cpp
@@ -1,6 +1,6 @@
 // Instruct the operating system to execute a command--wx interface.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/test_coding_rules.cpp b/test_coding_rules.cpp
index 57f54ae..ce98024 100644
--- a/test_coding_rules.cpp
+++ b/test_coding_rules.cpp
@@ -1,6 +1,6 @@
 // Test files for consistency with various rules.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/test_coding_rules_test.sh b/test_coding_rules_test.sh
index 3442522..3966c59 100755
--- a/test_coding_rules_test.sh
+++ b/test_coding_rules_test.sh
@@ -2,7 +2,7 @@
 
 # Test files for consistency with various rules: unit test.
 
-# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/test_main.cpp b/test_main.cpp
index 73a3963..28dffd2 100644
--- a/test_main.cpp
+++ b/test_main.cpp
@@ -1,6 +1,6 @@
 // Unit-test framework based on Beman Dawes's boost library.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/test_schemata.sh b/test_schemata.sh
index 33831ad..ff33a7e 100755
--- a/test_schemata.sh
+++ b/test_schemata.sh
@@ -2,7 +2,7 @@
 
 # Test xml schemata.
 
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/test_tools.hpp b/test_tools.hpp
index 1472f2f..cdb7e1f 100644
--- a/test_tools.hpp
+++ b/test_tools.hpp
@@ -1,6 +1,6 @@
 // Unit-test framework based on Beman Dawes's boost library.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/test_tools_test.cpp b/test_tools_test.cpp
index d48202d..5eb2242 100644
--- a/test_tools_test.cpp
+++ b/test_tools_test.cpp
@@ -1,6 +1,6 @@
 // Test the testing framework.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/text_doc.cpp b/text_doc.cpp
index 6ed3c9e..d3b12da 100644
--- a/text_doc.cpp
+++ b/text_doc.cpp
@@ -1,6 +1,6 @@
 // Document class for plain text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/text_doc.hpp b/text_doc.hpp
index a85a648..c174d26 100644
--- a/text_doc.hpp
+++ b/text_doc.hpp
@@ -1,6 +1,6 @@
 // Document class for plain text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/text_to_html_strings.sed b/text_to_html_strings.sed
index ca7a584..6c8ddc8 100755
--- a/text_to_html_strings.sed
+++ b/text_to_html_strings.sed
@@ -6,7 +6,7 @@
 #   #include "output_of_this_script"
 #   ;
 
-# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/text_to_strings.sed b/text_to_strings.sed
index 106ca77..cc03d25 100755
--- a/text_to_strings.sed
+++ b/text_to_strings.sed
@@ -6,7 +6,7 @@
 #   #include "output_of_this_script"
 #   ;
 
-# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/text_view.cpp b/text_view.cpp
index 6592136..1383c24 100644
--- a/text_view.cpp
+++ b/text_view.cpp
@@ -1,6 +1,6 @@
 // Document view for plain text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/text_view.hpp b/text_view.hpp
index d07f564..b90fa14 100644
--- a/text_view.hpp
+++ b/text_view.hpp
@@ -1,6 +1,6 @@
 // Document view for plain text.
 //
-// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_document.cpp b/tier_document.cpp
index 2c70feb..4d30bce 100644
--- a/tier_document.cpp
+++ b/tier_document.cpp
@@ -1,6 +1,6 @@
 // Document class for Stratified charges.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_document.hpp b/tier_document.hpp
index 3b6225a..dc14c45 100644
--- a/tier_document.hpp
+++ b/tier_document.hpp
@@ -1,6 +1,6 @@
 // Document class for Stratified charges.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_view.cpp b/tier_view.cpp
index 85edf00..b824d9a 100644
--- a/tier_view.cpp
+++ b/tier_view.cpp
@@ -1,6 +1,6 @@
 // Stratified charges manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_view.hpp b/tier_view.hpp
index 7e59896..0989925 100644
--- a/tier_view.hpp
+++ b/tier_view.hpp
@@ -1,6 +1,6 @@
 // Stratified charges manager.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_view_editor.cpp b/tier_view_editor.cpp
index 9d30cae..fbf888a 100644
--- a/tier_view_editor.cpp
+++ b/tier_view_editor.cpp
@@ -1,6 +1,6 @@
 // Stratified charges manager editor classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tier_view_editor.hpp b/tier_view_editor.hpp
index 346a2a0..c2115f7 100644
--- a/tier_view_editor.hpp
+++ b/tier_view_editor.hpp
@@ -1,6 +1,6 @@
 // Stratified charges manager editor classes.
 //
-// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017 Gregory W. Chicares.
+// Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 
2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/timer.cpp b/timer.cpp
index a576b9c..38adeb5 100644
--- a/timer.cpp
+++ b/timer.cpp
@@ -1,6 +1,6 @@
 // Measure elapsed time to high resolution.
 //
-// Copyright (C) 1998, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/timer.hpp b/timer.hpp
index 3f36505..6145983 100644
--- a/timer.hpp
+++ b/timer.hpp
@@ -1,6 +1,6 @@
 // Measure elapsed time to high resolution.
 //
-// Copyright (C) 1998, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 1998, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/timer_test.cpp b/timer_test.cpp
index 7c2f6e3..e94fb51 100644
--- a/timer_test.cpp
+++ b/timer_test.cpp
@@ -1,6 +1,6 @@
 // Measure elapsed time to high resolution--unit test.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range.hpp b/tn_range.hpp
index 5e32a99..1e8c1c2 100644
--- a/tn_range.hpp
+++ b/tn_range.hpp
@@ -1,6 +1,6 @@
 // Trammeled Numeric range type: class template declaration.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range.tpp b/tn_range.tpp
index d520792..ab3ee7a 100644
--- a/tn_range.tpp
+++ b/tn_range.tpp
@@ -1,6 +1,6 @@
 // Trammeled Numeric range type: class template implementation.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_fwd.hpp b/tn_range_fwd.hpp
index d790f6d..a3b657e 100644
--- a/tn_range_fwd.hpp
+++ b/tn_range_fwd.hpp
@@ -1,6 +1,6 @@
 // Forward declaration of Trammeled Numeric range template.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_test.cpp b/tn_range_test.cpp
index ecb2e6c..154fa43 100644
--- a/tn_range_test.cpp
+++ b/tn_range_test.cpp
@@ -1,6 +1,6 @@
 // Trammeled Numeric range type: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_test_aux.cpp b/tn_range_test_aux.cpp
index 4783a06..3e1efcc 100644
--- a/tn_range_test_aux.cpp
+++ b/tn_range_test_aux.cpp
@@ -1,6 +1,6 @@
 // Trammeled Numeric range type: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_test_aux.hpp b/tn_range_test_aux.hpp
index 16197af..ff33b29 100644
--- a/tn_range_test_aux.hpp
+++ b/tn_range_test_aux.hpp
@@ -1,6 +1,6 @@
 // Trammeled Numeric range type: unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_type_trammels.hpp b/tn_range_type_trammels.hpp
index d329a61..adbed49 100644
--- a/tn_range_type_trammels.hpp
+++ b/tn_range_type_trammels.hpp
@@ -1,6 +1,6 @@
 // Trammels for specific tn_range types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_types.cpp b/tn_range_types.cpp
index a874e89..c2341ce 100644
--- a/tn_range_types.cpp
+++ b/tn_range_types.cpp
@@ -1,6 +1,6 @@
 // Instantiation of specific tn_range types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/tn_range_types.hpp b/tn_range_types.hpp
index 59b23dc..5d3ee83 100644
--- a/tn_range_types.hpp
+++ b/tn_range_types.hpp
@@ -1,6 +1,6 @@
 // Declaration of specific tn_range types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/toolbar.xrc b/toolbar.xrc
index 6366bc7..0a15494 100644
--- a/toolbar.xrc
+++ b/toolbar.xrc
@@ -5,7 +5,7 @@
 <!--
     Life insurance illustrations: wxWindows xml resources.
 
-    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/transferor.cpp b/transferor.cpp
index d0f9637..634c60c 100644
--- a/transferor.cpp
+++ b/transferor.cpp
@@ -1,6 +1,6 @@
 // Transfer data between wx standard controls and std::strings.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/transferor.hpp b/transferor.hpp
index bc954e3..f270253 100644
--- a/transferor.hpp
+++ b/transferor.hpp
@@ -1,6 +1,6 @@
 // Transfer data between wx standard controls and std::strings.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/types.rnc b/types.rnc
index 497a7bd..ec1e3df 100644
--- a/types.rnc
+++ b/types.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for custom types.
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/types.xsd b/types.xsd
index 31034e3..224f73c 100644
--- a/types.xsd
+++ b/types.xsd
@@ -3,7 +3,7 @@
   <!--
     RELAX NG schema for custom types.
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/types_07.rnc b/types_07.rnc
index aab0ba5..25982e4 100644
--- a/types_07.rnc
+++ b/types_07.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for custom types.
 #
-# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/types_07.xsd b/types_07.xsd
index 71df360..7ff53e2 100644
--- a/types_07.xsd
+++ b/types_07.xsd
@@ -3,7 +3,7 @@
   <!--
     RELAX NG schema for custom types.
 
-    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
diff --git a/user_manual.html b/user_manual.html
index c22f561..c5290b7 100644
--- a/user_manual.html
+++ b/user_manual.html
@@ -4,7 +4,7 @@
 <!--
     Let me illustrate... user manual.
 
-    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License version 2 as
@@ -125,7 +125,7 @@
 <hr>
 
 <p>
-Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+Copyright &copy; 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory W. 
Chicares.
 This program, including its documentation, is free software. Read the
 <a href="COPYING.html">terms</a>
 under which you can redistribute and modify it.
diff --git a/value_cast.hpp b/value_cast.hpp
index 5c30e13..25d4a74 100644
--- a/value_cast.hpp
+++ b/value_cast.hpp
@@ -1,6 +1,6 @@
 // General conversion between types.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/value_cast_test.cpp b/value_cast_test.cpp
index 84adbf0..9376a50 100644
--- a/value_cast_test.cpp
+++ b/value_cast_test.cpp
@@ -1,6 +1,6 @@
 // General conversion between types--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/vector_test.cpp b/vector_test.cpp
index ef95188..d0a0686 100644
--- a/vector_test.cpp
+++ b/vector_test.cpp
@@ -1,6 +1,6 @@
 // Expression templates for arithmetic.
 //
-// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/version.hpp b/version.hpp
index 6e2ee8a..965bd30 100644
--- a/version.hpp
+++ b/version.hpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2017 Gregory W. Chicares.
+// Copyright (C) 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/view_ex.cpp b/view_ex.cpp
index 762850a..b46bbca 100644
--- a/view_ex.cpp
+++ b/view_ex.cpp
@@ -1,6 +1,6 @@
 // Enhanced wxView class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/view_ex.hpp b/view_ex.hpp
index c5783f6..12c48d5 100644
--- a/view_ex.hpp
+++ b/view_ex.hpp
@@ -1,6 +1,6 @@
 // Enhanced wxView class.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/view_ex.tpp b/view_ex.tpp
index 81fdaa0..921064a 100644
--- a/view_ex.tpp
+++ b/view_ex.tpp
@@ -1,6 +1,6 @@
 // Enhanced wxView class: function templates.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/workhorse.make b/workhorse.make
index 23456b5..55c446d 100644
--- a/workhorse.make
+++ b/workhorse.make
@@ -1,6 +1,6 @@
 # Main lmi makefile, invoked by 'GNUmakefile'.
 #
-# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/wx_checks.cpp b/wx_checks.cpp
index de78acc..acf3f54 100644
--- a/wx_checks.cpp
+++ b/wx_checks.cpp
@@ -1,6 +1,6 @@
 // Validate assumptions about how the wxWindows library was built.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_checks.hpp b/wx_checks.hpp
index f9b55e6..85e6b93 100644
--- a/wx_checks.hpp
+++ b/wx_checks.hpp
@@ -1,6 +1,6 @@
 // Validate assumptions about how the wxWindows library was built.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_new.cpp b/wx_new.cpp
index 088f348..ad2de05 100644
--- a/wx_new.cpp
+++ b/wx_new.cpp
@@ -1,6 +1,6 @@
 // Allocation functions to work around a wx, mpatrol, and msw problem.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_new.hpp b/wx_new.hpp
index b8f8108..a8ac7eb 100644
--- a/wx_new.hpp
+++ b/wx_new.hpp
@@ -1,6 +1,6 @@
 // Allocation functions to work around a wx, mpatrol, and msw problem.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_new_test.cpp b/wx_new_test.cpp
index 7f302eb..162aba3 100644
--- a/wx_new_test.cpp
+++ b/wx_new_test.cpp
@@ -1,6 +1,6 @@
 // Overloaded operator new--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_table_generator.cpp b/wx_table_generator.cpp
index 28f8c28..237fbf2 100644
--- a/wx_table_generator.cpp
+++ b/wx_table_generator.cpp
@@ -1,6 +1,6 @@
 // Generate a table using wxDC.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_table_generator.hpp b/wx_table_generator.hpp
index 3e3f657..515a3ce 100644
--- a/wx_table_generator.hpp
+++ b/wx_table_generator.hpp
@@ -1,6 +1,6 @@
 // Generate a table using wxDC.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_about_version.cpp b/wx_test_about_version.cpp
index 6901fd9..ae6f863 100644
--- a/wx_test_about_version.cpp
+++ b/wx_test_about_version.cpp
@@ -1,6 +1,6 @@
 // Version number test case for the GUI test suite.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_benchmark_census.cpp b/wx_test_benchmark_census.cpp
index eddb3f7..0f9a4fa 100644
--- a/wx_test_benchmark_census.cpp
+++ b/wx_test_benchmark_census.cpp
@@ -1,6 +1,6 @@
 // Measure the speed of various operations on certain census files.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_calculation_summary.cpp b/wx_test_calculation_summary.cpp
index 5275184..9447fcd 100644
--- a/wx_test_calculation_summary.cpp
+++ b/wx_test_calculation_summary.cpp
@@ -1,6 +1,6 @@
 // Test calculation summary.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_case.hpp b/wx_test_case.hpp
index 5c62f66..fa74056 100644
--- a/wx_test_case.hpp
+++ b/wx_test_case.hpp
@@ -1,6 +1,6 @@
 // Supporting framework for wx interface test cases.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_config_settings.cpp b/wx_test_config_settings.cpp
index 08fdf56..6063cdf 100644
--- a/wx_test_config_settings.cpp
+++ b/wx_test_config_settings.cpp
@@ -1,6 +1,6 @@
 // Validate configurable-settings file for binary distributions.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_create_open.cpp b/wx_test_create_open.cpp
index 6980f1f..a488701 100644
--- a/wx_test_create_open.cpp
+++ b/wx_test_create_open.cpp
@@ -1,6 +1,6 @@
 // Create, save, and reopen a file of each available type.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_date.hpp b/wx_test_date.hpp
index adee93c..847c9e3 100644
--- a/wx_test_date.hpp
+++ b/wx_test_date.hpp
@@ -1,6 +1,6 @@
 // Helpers for working with dates in wx test suite code.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_default_input.cpp b/wx_test_default_input.cpp
index 0245aa1..6a8b1c8 100644
--- a/wx_test_default_input.cpp
+++ b/wx_test_default_input.cpp
@@ -1,6 +1,6 @@
 // Test selected parameters in the user-customizable default cell.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_default_update.cpp b/wx_test_default_update.cpp
index b1e6ebb..b2eb25d 100644
--- a/wx_test_default_update.cpp
+++ b/wx_test_default_update.cpp
@@ -1,6 +1,6 @@
 // Make sure the default input file can be opened, modified, and saved.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_document.hpp b/wx_test_document.hpp
index 0b50e0d..fd51978 100644
--- a/wx_test_document.hpp
+++ b/wx_test_document.hpp
@@ -1,6 +1,6 @@
 // Helper for creating documents in unattended GUI tests.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_expiry_dates.cpp b/wx_test_expiry_dates.cpp
index 3f743f5..c302400 100644
--- a/wx_test_expiry_dates.cpp
+++ b/wx_test_expiry_dates.cpp
@@ -1,6 +1,6 @@
 // Expire dates test case for the GUI test suite.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_input_sequences.cpp b/wx_test_input_sequences.cpp
index 3bf375a..ab0e64e 100644
--- a/wx_test_input_sequences.cpp
+++ b/wx_test_input_sequences.cpp
@@ -1,6 +1,6 @@
 // Validate a variety of input sequences in the GUI input dialog.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_input_validation.cpp b/wx_test_input_validation.cpp
index 78a145f..c4ffa09 100644
--- a/wx_test_input_validation.cpp
+++ b/wx_test_input_validation.cpp
@@ -1,6 +1,6 @@
 // Test validation of input ranges in a census.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_log_errors.cpp b/wx_test_log_errors.cpp
index be3d4ae..5009065 100644
--- a/wx_test_log_errors.cpp
+++ b/wx_test_log_errors.cpp
@@ -1,6 +1,6 @@
 // Test that wxLog error messages are shown to the user.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_new.hpp b/wx_test_new.hpp
index ac6378a..e9cc476 100644
--- a/wx_test_new.hpp
+++ b/wx_test_new.hpp
@@ -1,6 +1,6 @@
 // Helper for creating new documents in unattended GUI tests.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_output.hpp b/wx_test_output.hpp
index 751be08..6981880 100644
--- a/wx_test_output.hpp
+++ b/wx_test_output.hpp
@@ -1,6 +1,6 @@
 // Helpers for working with output files in wx test suite.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_output_pdf.hpp b/wx_test_output_pdf.hpp
index e0c6e71..84ea9f6 100644
--- a/wx_test_output_pdf.hpp
+++ b/wx_test_output_pdf.hpp
@@ -1,6 +1,6 @@
 // Helper class for working with PDF output files in wx test suite.
 //
-// Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_paste_census.cpp b/wx_test_paste_census.cpp
index b69c95b..32e4991 100644
--- a/wx_test_paste_census.cpp
+++ b/wx_test_paste_census.cpp
@@ -1,6 +1,6 @@
 // Test pasting spreadsheet data into a census.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_pdf_create.cpp b/wx_test_pdf_create.cpp
index 19715f3..1fe088f 100644
--- a/wx_test_pdf_create.cpp
+++ b/wx_test_pdf_create.cpp
@@ -1,6 +1,6 @@
 // Test printing census and illustration documents to PDF.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_statusbar.hpp b/wx_test_statusbar.hpp
index 9ff068e..04706eb 100644
--- a/wx_test_statusbar.hpp
+++ b/wx_test_statusbar.hpp
@@ -1,6 +1,6 @@
 // Helpers for checking status bar contents in unattended GUI tests.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_test_validate_output.cpp b/wx_test_validate_output.cpp
index 6efc64a..edb336d 100644
--- a/wx_test_validate_output.cpp
+++ b/wx_test_validate_output.cpp
@@ -1,6 +1,6 @@
 // Test creation and naming of spreadsheet output files.
 //
-// Copyright (C) 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_utility.cpp b/wx_utility.cpp
index 8069986..626ec5a 100644
--- a/wx_utility.cpp
+++ b/wx_utility.cpp
@@ -1,6 +1,6 @@
 // Utilities for use with wxWidgets.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_utility.hpp b/wx_utility.hpp
index d3c97ee..8d88772 100644
--- a/wx_utility.hpp
+++ b/wx_utility.hpp
@@ -1,6 +1,6 @@
 // Utilities for use with wxWidgets.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/wx_workarounds.hpp b/wx_workarounds.hpp
index ff2406a..c13598f 100644
--- a/wx_workarounds.hpp
+++ b/wx_workarounds.hpp
@@ -1,6 +1,6 @@
 // Miscellaneous wx workarounds.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_lmi.cpp b/xml_lmi.cpp
index 5964ada..c0041ee 100644
--- a/xml_lmi.cpp
+++ b/xml_lmi.cpp
@@ -1,6 +1,6 @@
 // Interface to xmlwrapp.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_lmi.hpp b/xml_lmi.hpp
index 81ab6b9..9d1d4dc 100644
--- a/xml_lmi.hpp
+++ b/xml_lmi.hpp
@@ -1,6 +1,6 @@
 // Interface to xmlwrapp.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_lmi_fwd.hpp b/xml_lmi_fwd.hpp
index e814233..aaa2ae7 100644
--- a/xml_lmi_fwd.hpp
+++ b/xml_lmi_fwd.hpp
@@ -1,6 +1,6 @@
 // Interface to xmlwrapp: forward declarations.
 //
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 
2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_serializable.hpp b/xml_serializable.hpp
index 385fd85..e096260 100644
--- a/xml_serializable.hpp
+++ b/xml_serializable.hpp
@@ -1,6 +1,6 @@
 // Mixin for xml serialization.
 //
-// Copyright (C) 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 
2013, 2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_serializable.tpp b/xml_serializable.tpp
index c6d804e..2cca7a4 100644
--- a/xml_serializable.tpp
+++ b/xml_serializable.tpp
@@ -1,6 +1,6 @@
 // Mixin for xml serialization.
 //
-// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 
2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_serialize.hpp b/xml_serialize.hpp
index 5fb9aa8..279d7dd 100644
--- a/xml_serialize.hpp
+++ b/xml_serialize.hpp
@@ -1,6 +1,6 @@
 // Serialization to and from xml.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_serialize_test.cpp b/xml_serialize_test.cpp
index 0460eed..762026b 100644
--- a/xml_serialize_test.cpp
+++ b/xml_serialize_test.cpp
@@ -1,6 +1,6 @@
 // Serialization to and from xml--unit test.
 //
-// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory W. 
Chicares.
+// Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Gregory 
W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xml_xslt_wrapp.cpp b/xml_xslt_wrapp.cpp
index 9e813bf..cf3ea8f 100644
--- a/xml_xslt_wrapp.cpp
+++ b/xml_xslt_wrapp.cpp
@@ -1,6 +1,6 @@
 // Include xmlwrapp and xsltwrapp sources.
 //
-// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Gregory 
W. Chicares.
+// Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 
Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/xrc.rnc b/xrc.rnc
index 8b95651..18de2f7 100644
--- a/xrc.rnc
+++ b/xrc.rnc
@@ -1,6 +1,6 @@
 # RELAX NG schema for '.xrc' files.
 #
-# Copyright (C) 2015, 2016, 2017 Gregory W. Chicares.
+# Copyright (C) 2015, 2016, 2017, 2018 Gregory W. Chicares.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
diff --git a/yare_input.cpp b/yare_input.cpp
index 552409e..608d078 100644
--- a/yare_input.cpp
+++ b/yare_input.cpp
@@ -1,6 +1,6 @@
 // Illustration input ready for use in calculations.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/yare_input.hpp b/yare_input.hpp
index 01db7eb..8836e25 100644
--- a/yare_input.hpp
+++ b/yare_input.hpp
@@ -1,6 +1,6 @@
 // Illustration input ready for use in calculations.
 //
-// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 
Gregory W. Chicares.
+// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 
2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/zero.hpp b/zero.hpp
index 9606d3d..e4d0ac6 100644
--- a/zero.hpp
+++ b/zero.hpp
@@ -1,6 +1,6 @@
 // Root finding by Brent's method.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
diff --git a/zero_test.cpp b/zero_test.cpp
index 75e2f2a..8814457 100644
--- a/zero_test.cpp
+++ b/zero_test.cpp
@@ -1,6 +1,6 @@
 // Root finding by Brent's method--unit test.
 //
-// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017 Gregory W. Chicares.
+// Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 
2014, 2015, 2016, 2017, 2018 Gregory W. Chicares.
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
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