Year % of female population 1960 18.7797811554201 1961 18.8322842181408 1962 18.8656205403627 1963 18.8924638310155 1964 18.9140027429904 1965 18.9262076648335 1966 18.9264024985367 1967 18.9044118222875 1968 18.8550813162345 1969 18.7815617197265 1970 18.6799746767211 1971 18.4879629833991 1972 18.2206409328335 1973 17.9589951286969 1974 17.7185655499852 1975 17.5000255356552 1976 17.2649794703323 1977 16.9991811165401 1978 16.713624102839 1979 16.3818916435661 1980 16.0128446031414 1981 15.6436728133352 1982 15.2835007402046 1983 14.9409105912472 1984 14.6321548899916 1985 14.3429817614022 1986 14.0480946554216 1987 13.7683336114759 1988 13.5347780897264 1989 13.3349258124713 1990 13.1609126528815 1991 13.0035750680613 1992 12.8423757377937 1993 12.6772781963163 1994 12.5076699597472 1995 12.3122774409351 1996 12.0793440074822 1997 11.8263503675933 1998 11.571514671278 1999 11.3198021975539 2000 11.1131872163465 2001 10.9704341013297 2002 10.8531047336623 2003 10.737194815142 2004 10.6028092358078 2005 10.4366911959414 2006 10.2518146471973 2007 10.0700054970581 2008 9.89656532564121 2009 9.73270646425265 2010 9.57201741144925 2011 9.41912554055021 2012 9.27412250486061 2013 9.12119143199082 2014 8.95469880062333 2015 8.77913643887581 2016 8.59446319915772 2017 8.40261614879207 2018 8.19938063466898 2019 7.97001309053376 2020 7.7385967757094 2021 7.51077497331667 2022 7.27986349727207 2023 7.0805221365602