Year % of female population 1960 0.611764398835352 1961 0.618849618650083 1962 0.642095722909114 1963 0.675834351805807 1964 0.702839085998932 1965 0.721371497016579 1966 0.733796525684205 1967 0.74198791166377 1968 0.747674983354981 1969 0.748560332087255 1970 0.739663042638941 1971 0.738582382395588 1972 0.757807633955774 1973 0.77397504126494 1974 0.778779357061205 1975 0.780206749424005 1976 0.778142093682826 1977 0.772397173270892 1978 0.765169997835941 1979 0.760226696322177 1980 0.747183228745687 1981 0.72795326822273 1982 0.714886525606949 1983 0.705762556291771 1984 0.69816945807293 1985 0.691981050642193 1986 0.688994332787223 1987 0.690108267837763 1988 0.694760639923787 1989 0.702233904457426 1990 0.712446403058745 1991 0.724476401547687 1992 0.736669511616552 1993 0.749566868483733 1994 0.770284576248694 1995 0.797503006394201 1996 0.824600727833558 1997 0.852084983009523 1998 0.879400114403621 1999 0.906235176967823 2000 0.934924589791024 2001 0.9674529011403 2002 1.00338746334884 2003 1.04241833104097 2004 1.0855486905511 2005 1.13288587345895 2006 1.18376926488548 2007 1.23748871444745 2008 1.29474227604232 2009 1.35031114933185 2010 1.39807783111101 2011 1.44002949701732 2012 1.47867211851507 2013 1.51471159518009 2014 1.54522043104184 2015 1.56671010527873 2016 1.57781867427102 2017 1.58749169198231 2018 1.59680125649531 2019 1.60870128631174 2020 1.62992399402487 2021 1.65245608913771 2022 1.68338490329186 2023 1.73625165048042