Year % of female population 1960 21.1718700636764 1961 21.4575966355873 1962 21.4674869335141 1963 21.2398725305946 1964 20.834091267387 1965 20.3694706712168 1966 19.9689938270557 1967 19.6249089385383 1968 19.2650079890436 1969 18.851982102125 1970 18.3982521660442 1971 17.9117110755346 1972 17.4906853100013 1973 17.2480144291512 1974 17.2145328719723 1975 17.3495826130517 1976 17.5305298133174 1977 17.6065697564659 1978 17.5109162393782 1979 17.2559271236176 1980 16.87602110507 1981 16.3779527559055 1982 15.9138639097135 1983 15.6639553352265 1984 15.6478238538925 1985 15.8405705894693 1986 16.1330397734163 1987 16.3348599557591 1988 16.3603014773592 1989 16.222217395187 1990 15.9202078696853 1991 15.3654746892452 1992 14.7203546296941 1993 14.2130910270698 1994 13.8152700566124 1995 13.4975801859935 1996 13.2318092579527 1997 12.9738661823487 1998 12.6882455245926 1999 12.3588767822851 2000 11.9669100957099 2001 11.4920220990781 2002 10.9120510523666 2003 10.3970355187368 2004 10.2090082652045 2005 10.2368594779532 2006 10.2851443245857 2007 10.3008663978274 2008 10.1694397514915 2009 9.78660903080753 2010 9.61948895343145 2011 9.74931699354963 2012 9.736004839875 2013 9.68866592188192 2014 9.6933540221869 2015 9.67570865177229 2016 9.63876797547291 2017 9.55012237508652 2018 9.37695542684689 2019 9.21343345596037 2020 9.00071628736946 2021 8.62948418365139 2022 8.21128717185028 2023 7.80027183380212