Year % of female population 1960 6.46724987423005 1961 6.58020378514964 1962 6.69208278054167 1963 6.81933859215204 1964 6.95687136332592 1965 7.0919792286455 1966 7.26981114223932 1967 7.47061848826648 1968 7.65049184713508 1969 7.81267554176523 1970 7.9616525350497 1971 8.11163843667432 1972 8.30560769360091 1973 8.53499605770181 1974 8.77221237611507 1975 9.02777624248271 1976 9.30181591650876 1977 9.60618043343102 1978 9.92512187903403 1979 10.2536146513616 1980 10.5813765915573 1981 10.9053924014682 1982 11.2393176150414 1983 11.5581245287927 1984 11.8725112184251 1985 12.2515989387339 1986 12.6777015442739 1987 13.1161839387429 1988 13.5724214893958 1989 14.0483380235345 1990 14.558321050316 1991 15.0935350889064 1992 15.6370933790786 1993 16.1759525100976 1994 16.7207797627272 1995 17.2719371008458 1996 17.8480305597105 1997 18.4548808081147 1998 19.0670460397322 1999 19.6677439367174 2000 20.2811943532399 2001 20.9231950103147 2002 21.5527271196573 2003 22.1222083872237 2004 22.6378032177801 2005 23.2045652271225 2006 23.8827128625775 2007 24.5934908583657 2008 25.2635272686216 2009 25.8755361384401 2010 26.3340846632466 2011 26.72739657412 2012 27.4055422552259 2013 28.3486575293081 2014 29.3062351722328 2015 30.1196438838732 2016 30.7532551708455 2017 31.2915535998234 2018 31.7496107305083 2019 32.1466395977312 2020 32.4625385439853 2021 32.6761778591623 2022 32.8230175962138 2023 32.9737569602422