Year % of female population 1960 21.7579819943458 1961 21.2962424620319 1962 20.8883049588996 1963 20.5646461344842 1964 20.3678962067495 1965 20.2979867341129 1966 20.3072447576168 1967 20.3448797976259 1968 20.3380495844309 1969 20.2947727376499 1970 20.2439079905358 1971 20.2002104980526 1972 20.1661503244594 1973 20.1278074365023 1974 20.1001393999782 1975 20.0656036671438 1976 19.9803952735436 1977 19.8300041129589 1978 19.605905483492 1979 19.298505091017 1980 18.9529756273929 1981 18.5996049736586 1982 18.2389455640009 1983 17.9240902490989 1984 17.6931791344525 1985 17.5199315101989 1986 17.3623022298919 1987 17.2281687013467 1988 17.1657655237851 1989 17.1620206800503 1990 17.2384744266905 1991 17.4130274211633 1992 17.625402258584 1993 17.8422253765806 1994 18.0025905599885 1995 18.0647311766806 1996 18.0607812612316 1997 18.0193392725656 1998 17.9544653294075 1999 17.8698561343178 2000 17.7538961599271 2001 17.606449819838 2002 17.4494859221862 2003 17.2743527372597 2004 17.0649422217075 2005 16.8165441020974 2006 16.5641877249392 2007 16.3545986981406 2008 16.1938104661271 2009 16.1018132332811 2010 16.1108940534457 2011 16.2038836597589 2012 16.3490854096374 2013 16.5287701209009 2014 16.7166237559043 2015 16.8958377707096 2016 17.0651409762887 2017 17.2041241516114 2018 17.289499993277 2019 17.3328314287111 2020 17.3460959849396 2021 17.3244897617383 2022 17.2228484088235 2023 17.0601272182307