Year % of female population 1960 19.9639795530993 1961 20.1318712192381 1962 20.1798758456167 1963 20.1858829006699 1964 20.1679668163119 1965 20.1549012652241 1966 20.1894641872588 1967 20.2512928114726 1968 20.3259607996992 1969 20.4216116445121 1970 20.5193825813491 1971 20.6086611044895 1972 20.5904331888584 1973 20.3734575595164 1974 19.9987646981617 1975 19.4871755584837 1976 19.0132691458083 1977 18.6627708420294 1978 18.2740771012124 1979 17.8220437493395 1980 17.3530940062806 1981 16.9303999100483 1982 16.5836283054225 1983 16.2916006339144 1984 16.0142894713772 1985 15.7139443788782 1986 15.5005127396072 1987 15.4004937010555 1988 15.3212740140139 1989 15.2946075369561 1990 15.3416277151499 1991 15.5219620776064 1992 15.7943810742384 1993 16.0062207553192 1994 16.1616915085511 1995 16.2334494301319 1996 16.3078837556895 1997 16.4203346879907 1998 16.4715836976449 1999 16.4337162288805 2000 16.3462886673655 2001 16.3207904728341 2002 16.3184809323714 2003 16.260466703415 2004 16.1399210207353 2005 15.9488559892328 2006 15.7395628541691 2007 15.5787835691919 2008 15.4464596587852 2009 15.3032626181379 2010 15.1919897688637 2011 15.129210833354 2012 15.0844787644788 2013 15.0311115474773 2014 14.9670109882069 2015 14.8981123851267 2016 14.7781684647602 2017 14.7242768478241 2018 14.8100818561922 2019 14.9493336751878 2020 15.0366945969373 2021 15.0040979143622 2022 14.882472374041 2023 14.7386490042293