Year % of female population 1960 0.630006033504865 1961 0.655196758166951 1962 0.680071674128377 1963 0.701635051896727 1964 0.722909935816612 1965 0.74467789892074 1966 0.76600362232448 1967 0.787220187713057 1968 0.804746698261354 1969 0.819926494478954 1970 0.835458962259795 1971 0.849651880851309 1972 0.860197165367542 1973 0.870037464889258 1974 0.881026876927661 1975 0.895979960237953 1976 0.915621653990854 1977 0.934188537900736 1978 0.954066233968778 1979 0.980460820146649 1980 1.01055019232538 1981 1.04285083441275 1982 1.08160106101575 1983 1.12158881478161 1984 1.15379594649855 1985 1.17717580662835 1986 1.19554615082759 1987 1.20868932904289 1988 1.21742239356969 1989 1.23091406513689 1990 1.25043150643978 1991 1.27611838473401 1992 1.30860272283142 1993 1.34524478247463 1994 1.38046149706961 1995 1.41302962393745 1996 1.44403446853252 1997 1.47053852356585 1998 1.49624807132187 1999 1.52767112749175 2000 1.56692807537897 2001 1.61277904858059 2002 1.66472615903762 2003 1.71966482260343 2004 1.77311856742563 2005 1.82339857738494 2006 1.86965209593893 2007 1.9103690973618 2008 1.94834249563965 2009 1.98901657480408 2010 2.03356529132925 2011 2.08412590252216 2012 2.14127614325898 2013 2.19832796162414 2014 2.24627462117585 2015 2.28111232338121 2016 2.30509529937254 2017 2.31808365115689 2018 2.32183522425265 2019 2.32144536856461 2020 2.32975700539753 2021 2.32399185171322 2022 2.31068202429846 2023 2.31593093538001