Year % of female population 1960 0.545742228450447 1961 0.538775095310903 1962 0.532370779335055 1963 0.526583757734598 1964 0.52130126458518 1965 0.516438381852256 1966 0.512121953576547 1967 0.508385439715251 1968 0.505143439726351 1969 0.502587360174726 1970 0.501454946037443 1971 0.503293066552414 1972 0.507871273353067 1973 0.513940386984736 1974 0.521111157369943 1975 0.529323995855937 1976 0.538996984543028 1977 0.551270883623368 1978 0.566184609875278 1979 0.581864250959879 1980 0.598041713939104 1981 0.612130144688918 1982 0.622593864284114 1983 0.630545714667557 1984 0.635414697294645 1985 0.635744279709273 1986 0.639246145279607 1987 0.647339585211379 1988 0.654252262718931 1989 0.660091109890646 1990 0.665721223536093 1991 0.674508213759956 1992 0.684348363370105 1993 0.692220468109999 1994 0.699673359818945 1995 0.709077860888953 1996 0.722904712568843 1997 0.742273617382428 1998 0.765045909442302 1999 0.789022215462882 2000 0.816230522515585 2001 0.844412400457875 2002 0.873744292072926 2003 0.908278876019065 2004 0.952651174340035 2005 1.00592936466883 2006 1.06237866469051 2007 1.11895613842721 2008 1.17388823771887 2009 1.22484721517346 2010 1.2695246595684 2011 1.30185931651212 2012 1.32529724552513 2013 1.34220410277577 2014 1.34905882066001 2015 1.34741070210887 2016 1.36223114735624 2017 1.39344782036157 2018 1.4198205515944 2019 1.44844860069694 2020 1.47598324583526 2021 1.47887968994591 2022 1.45686472538565 2023 1.44697531630058