Year % of female population 1960 34.4284535815669 1961 34.5947835117431 1962 34.5563962028715 1963 34.3584796223858 1964 34.0466354681516 1965 33.6537487068974 1966 33.2007971098146 1967 32.7004745036257 1968 32.1609084113744 1969 31.5950362362105 1970 31.0144695353291 1971 30.4347198464081 1972 29.8884854076263 1973 29.3904428842485 1974 28.9281294705154 1975 28.4899402974173 1976 28.0670589350173 1977 27.6587936276008 1978 27.2782467076724 1979 26.9438500119817 1980 26.6667552127347 1981 26.397474572639 1982 26.1261852961701 1983 25.9057452112328 1984 25.7285440534921 1985 25.574378037947 1986 25.4362977057894 1987 25.2986929418862 1988 25.1477666638406 1989 24.9922888823172 1990 24.8363617404823 1991 24.6520409828861 1992 24.3394559564465 1993 23.9285686532021 1994 23.5439574485886 1995 23.1710653002749 1996 22.7887795139023 1997 22.3820793185266 1998 21.936858469205 1999 21.4974429184497 2000 21.0848744615451 2001 20.6971139464209 2002 20.3245748428425 2003 19.9785910257138 2004 19.6906963549094 2005 19.4371533983263 2006 19.191304681799 2007 18.947245281044 2008 18.7231274174726 2009 18.5306201825573 2010 18.3412109978375 2011 18.1101025595126 2012 17.8908559798727 2013 17.7240867688841 2014 17.595106709967 2015 17.4784690099978 2016 17.3549859675026 2017 17.2484140125521 2018 17.1619553961949 2019 17.1076705891094 2020 17.0818963378325 2021 17.0485056953622 2022 16.9607765433192 2023 16.8085314852803