Year % of female population 1960 22.794892979403 1961 22.8336108087912 1962 23.0116223925461 1963 23.0540969689347 1964 23.0447987595681 1965 23.055428230373 1966 23.0821886310664 1967 23.0470066059358 1968 22.9397467932191 1969 22.7985826372586 1970 22.7697823522155 1971 22.7199126093072 1972 22.4565308674158 1973 22.1228934865919 1974 21.7679881702895 1975 21.3603890977044 1976 20.8836588132004 1977 20.3718775909393 1978 19.8355827646386 1979 19.2761847837033 1980 18.7535168689528 1981 18.2745484196277 1982 17.8277544466591 1983 17.4304472169017 1984 17.0741005703676 1985 16.776153454946 1986 16.5403359190451 1987 16.3677122022084 1988 16.2809326899219 1989 16.2611097300166 1990 16.3289691603425 1991 16.4149748547954 1992 16.5221726970536 1993 16.6720059171956 1994 16.7560972301671 1995 16.7893101627977 1996 16.7964950013015 1997 16.7594542921028 1998 16.6864148740437 1999 16.6122606359353 2000 16.5140698661347 2001 16.2735215708695 2002 16.0118293766079 2003 15.8205505807146 2004 15.6067890930951 2005 15.3822247467106 2006 15.1485406450272 2007 14.9201117849273 2008 14.7309718001429 2009 14.5865268746204 2010 14.5192698351207 2011 14.4699119330483 2012 14.3847237135638 2013 14.3365772521612 2014 14.3168507841241 2015 14.30910472932 2016 14.3433197922584 2017 14.4065572439546 2018 14.4680996789881 2019 14.5126184158563 2020 14.5331701668092 2021 14.5449473970609 2022 14.5376845694707 2023 14.508909205275