Year % of female population 1960 8.52592370639248 1961 9.25164757733597 1962 9.72427959768318 1963 10.0374486445681 1964 10.3438738407851 1965 10.6688941457084 1966 11.0254830127415 1967 11.44787713556 1968 11.9009122359171 1969 12.3612570088393 1970 12.7881003949253 1971 13.1170823775283 1972 13.2670787453557 1973 13.1852467523519 1974 12.8650822425749 1975 12.3483655941546 1976 11.6787792637677 1977 10.9587042789001 1978 10.3221582504016 1979 9.78644509845774 1980 9.34540797196045 1981 9.01488941578293 1982 8.79423618845421 1983 8.65100434012443 1984 8.57575915987597 1985 8.56290373381699 1986 8.56245320665249 1987 8.510352028313 1988 8.44616450486577 1989 8.38225657359619 1990 8.38066770927926 1991 8.46710782280529 1992 8.56060454565845 1993 8.70233181979975 1994 8.93447627268456 1995 9.21811635464198 1996 9.47315309861693 1997 9.69160612442496 1998 9.83658473862326 1999 9.88854682317899 2000 9.91633332954598 2001 9.94864663395276 2002 9.94992059915253 2003 9.7918182243152 2004 9.40547813834228 2005 8.81156889811261 2006 8.10719553643882 2007 7.40478182008777 2008 6.79673824072398 2009 6.33228871606223 2010 5.95508821227018 2011 5.64055737812728 2012 5.38490033224699 2013 5.21259324160368 2014 5.1317870371964 2015 5.13489766136504 2016 5.13753888569567 2017 5.13504564681278 2018 5.18029405840886 2019 5.27365810300459 2020 5.38901296120081 2021 5.55137750696492 2022 5.79084227195608 2023 6.01773847522369