Year % of female population 1960 1.5151775273783 1961 1.5197235906063 1962 1.52278588572025 1963 1.52407273155491 1964 1.52451369356839 1965 1.52454146469865 1966 1.52360852049036 1967 1.52141873948528 1968 1.51834986366327 1969 1.51185983103434 1970 1.50243418013097 1971 1.49294367830906 1972 1.48267918075265 1973 1.47123669597588 1974 1.45880556127953 1975 1.44518612312921 1976 1.43125745673103 1977 1.41674030770625 1978 1.40091375961625 1979 1.38488614372122 1980 1.36800758499255 1981 1.34969057843699 1982 1.33002595385731 1983 1.30983555934866 1984 1.28992701697571 1985 1.27063280463272 1986 1.25179981968162 1987 1.23264680784197 1988 1.21331235227787 1989 1.19427598955551 1990 1.17509085002228 1991 1.1559261413828 1992 1.13697712882752 1993 1.11803066035544 1994 1.09957581838796 1995 1.08177811536729 1996 1.06463301534547 1997 1.04768682795021 1998 1.03084826783827 1999 1.01423307888693 2000 0.997883679785976 2001 0.981398263797292 2002 0.964684002435125 2003 0.94809869556745 2004 0.931428752861986 2005 0.91479201031742 2006 0.89827496749663 2007 0.88181602332307 2008 0.865861384093591 2009 0.850118195802599 2010 0.834275323870247 2011 0.818961298111186 2012 0.805314644732369 2013 0.793137891638962 2014 0.78083993248642 2015 0.768886163223779 2016 0.758557172889374 2017 0.750037375294286 2018 0.743817367669484 2019 0.740945066829804 2020 0.741401227407685 2021 0.742578459087675 2022 0.743978634634525 2023 0.745999549244985