Year % of female population 1960 18.7216831710659 1961 18.7333196444699 1962 18.7440263299549 1963 18.7633406801992 1964 18.8030491936289 1965 18.8573617354239 1966 18.9209976209799 1967 18.997065835564 1968 19.0722233698146 1969 19.1350616014263 1970 19.1944006299847 1971 19.2481401391896 1972 19.2866137268731 1973 19.3208710079827 1974 19.3635031993159 1975 19.475200841422 1976 19.5873913367575 1977 19.5959943458313 1978 19.5590553223294 1979 19.5180789713464 1980 19.4452543005533 1981 19.3653838049223 1982 19.3067777071013 1983 19.2270660118568 1984 19.1267130380903 1985 19.0218380893744 1986 18.9059080032449 1987 18.771407936247 1988 18.607514202577 1989 18.4007538174568 1990 18.1367838786852 1991 17.798955646792 1992 17.3842728427671 1993 17.0079282221456 1994 16.7388047458136 1995 16.4999722863376 1996 16.2601483165623 1997 16.0201407092249 1998 15.7362410193556 1999 15.3903097921857 2000 15.0285066036904 2001 14.677507533478 2002 14.3294076293012 2003 13.967859509609 2004 13.5729111276203 2005 13.0704178418978 2006 12.5565778958747 2007 12.1803368712173 2008 11.9101388000922 2009 11.7260714548292 2010 11.6624128001194 2011 11.6621880887758 2012 11.6130694481151 2013 11.5062684879602 2014 11.3602274591014 2015 11.2158139747877 2016 11.0647995050467 2017 10.8356252681524 2018 10.5886316005124 2019 10.3941072916223 2020 10.3071989952254 2021 10.2276156386759 2022 10.0341671502344 2023 9.78119805130773