Year % of female population 1960 0.631296171927468 1961 0.601978393856566 1962 0.575373993095512 1963 0.549752611324904 1964 0.526487030080748 1965 0.501138299852522 1966 0.47823013265688 1967 0.458814059565334 1968 0.438488382652466 1969 0.411161531325996 1970 0.38135593220339 1971 0.356420833674173 1972 0.331469288355732 1973 0.306665071718303 1974 0.281078586636182 1975 0.257953568357696 1976 0.242031503132746 1977 0.234562667797089 1978 0.268194674550797 1979 0.382429970909948 1980 0.474578699475277 1981 0.49964248966708 1982 0.522809251007851 1983 0.538402464099621 1984 0.550990739178976 1985 0.565501296591371 1986 0.580984712127771 1987 0.5989439090137 1988 0.616960303380713 1989 0.633636528761649 1990 0.64489357215257 1991 0.646371700189602 1992 0.644790313931476 1993 0.642390195362194 1994 0.638730400496245 1995 0.633897330201793 1996 0.62915514287552 1997 0.623901180446149 1998 0.617538540424251 1999 0.611060023180015 2000 0.613845207020224 2001 0.624651249302499 2002 0.633535621911577 2003 0.644303989879426 2004 0.659184122219142 2005 0.67361884827493 2006 0.682134444151379 2007 0.685426805733629 2008 0.684528445575229 2009 0.68112474204616 2010 0.680260903939913 2011 0.679257720025241 2012 0.669969443431122 2013 0.654865563104009 2014 0.638234305560742 2015 0.619599010099464 2016 0.59492694098026 2017 0.567525471001044 2018 0.54677925015066 2019 0.531881485301361 2020 0.520327302658124 2021 0.514718165800398 2022 0.514059686331245 2023 0.51892918991726