Year % of female population 1960 15.2662869026629 1961 15.3723522853958 1962 15.5230249771785 1963 15.7300320356193 1964 15.9919310707426 1965 16.2935402488923 1966 16.5670250971113 1967 16.7404847155246 1968 16.7939165677324 1969 16.7274089372127 1970 16.5436056704904 1971 16.3111980071259 1972 16.1125546238337 1973 15.9524181576686 1974 15.8004460389799 1975 15.6359325758233 1976 15.4571954587297 1977 15.2429945789112 1978 14.9976711690731 1979 14.7434864611273 1980 14.4856278366112 1981 14.1523096599458 1982 13.8019181251633 1983 13.563450460296 1984 13.416810804843 1985 13.3041243242749 1986 13.2170620255239 1987 13.1619033802408 1988 13.1043831902395 1989 13.0310567962653 1990 12.9061842507508 1991 12.6384078387739 1992 12.2399842468941 1993 11.8089151507578 1994 11.4053842179343 1995 11.0852078587699 1996 10.9203327254126 1997 10.8997649070314 1998 10.9483450798466 1999 11.0102816271793 2000 11.0373496026733 2001 10.9577113311371 2002 10.7363232410456 2003 10.4331579279905 2004 10.1100456331026 2005 9.79889410004197 2006 9.51086956521739 2007 9.24034501228229 2008 8.97042035213425 2009 8.69358448340172 2010 8.41847734388182 2011 8.17429185682495 2012 7.99184215518877 2013 7.89835295913888 2014 7.88852874048217 2015 7.91340591219306 2016 7.93265511372428 2017 7.94798389053326 2018 7.93785063539752 2019 7.89658399625643 2020 7.84983935076223 2021 7.78807972928036 2022 7.67059653661835 2023 7.4815388688941