Year % of female population 1960 9.54594519896427 1961 9.73141619203906 1962 9.9163226455013 1963 10.0847443000397 1964 10.2604323686449 1965 10.439275700439 1966 10.6189648092707 1967 10.8219271014133 1968 11.0225238798573 1969 11.2012929288422 1970 11.375413542276 1971 11.5491414755647 1972 11.7239651278018 1973 11.9211707136005 1974 12.1451455791063 1975 12.3599488075113 1976 12.5496022348033 1977 12.7657613734862 1978 13.0060530084582 1979 13.2412882194284 1980 13.449791861563 1981 13.627692294382 1982 13.8000910221042 1983 13.9517685537082 1984 14.0867118907107 1985 14.2836295394133 1986 14.5230937262639 1987 14.7372268470659 1988 14.9471433467827 1989 15.1283753431362 1990 15.2623343728234 1991 15.3660523419794 1992 15.4522559957914 1993 15.5217727947601 1994 15.5848552607031 1995 15.6606582591075 1996 15.7312749642327 1997 15.7921682859363 1998 15.8379258115202 1999 15.8607322507353 2000 15.8779907618732 2001 15.8999849662161 2002 15.926334873468 2003 15.9757344041121 2004 16.0739379216037 2005 16.2100925776236 2006 16.3441442920609 2007 16.4877952748773 2008 16.6846854301549 2009 16.9358564061694 2010 17.1798392121986 2011 17.5791664917413 2012 18.1297292282239 2013 18.5995752834846 2014 19.0035038217051 2015 19.3553613570536 2016 19.6702014025383 2017 19.9880358037514 2018 20.3087066013653 2019 20.6307255195518 2020 20.9408203228416 2021 21.2381007056458 2022 21.5893506591854 2023 21.9915440193876