Year % of female population 1960 18.5166734748777 1961 18.4458081738394 1962 18.1291868368295 1963 17.6385945126101 1964 17.0393520982303 1965 16.4004126375057 1966 15.775143830213 1967 15.1661457081029 1968 14.5200597216202 1969 13.8428394775485 1970 13.2186527291592 1971 12.7252361936301 1972 12.404193463131 1973 12.269220170846 1974 12.2585114806017 1975 12.2693157611833 1976 12.2763275155957 1977 12.278243690025 1978 12.258077618245 1979 12.2066304336701 1980 12.1746924646103 1981 12.0641088905338 1982 11.9294184535413 1983 11.9946078186629 1984 12.1866939691665 1985 12.3913510557259 1986 12.7831873085254 1987 13.339874411303 1988 13.6661413889137 1989 13.8351505451635 1990 13.8740458015267 1991 13.6163412076112 1992 13.1643895119254 1993 12.6954652071931 1994 12.2015735214324 1995 11.6331849173454 1996 11.0771406187301 1997 10.569916683292 1998 10.1585831474691 1999 9.85233258088789 2000 9.64950886294045 2001 9.41861332935294 2002 9.09184025029564 2003 8.78810077986628 2004 8.53830357389519 2005 8.31229187250704 2006 8.20049077524311 2007 8.20225733634312 2008 8.23173740255313 2009 8.28327480793569 2010 8.33702215060998 2011 8.39824710851944 2012 8.45597188880771 2013 8.48443085404195 2014 8.4854793024605 2015 8.45926301555105 2016 8.41421238182168 2017 8.35339232058965 2018 8.27276842668423 2019 8.17596198594068 2020 8.06118565424761 2021 7.93208413984756 2022 7.79380226894039 2023 7.64461337451004