Year % of female population 1960 10.6860410398277 1961 10.5291735610406 1962 10.468599658208 1963 10.4246400583197 1964 10.3554354361366 1965 10.283083068928 1966 10.1020796649693 1967 9.75448825226587 1968 9.30464855208044 1969 8.80083439198838 1970 8.22874142934495 1971 7.69298732002169 1972 7.29064789848118 1973 6.9853209669174 1974 6.77480944994703 1975 6.69555121514655 1976 6.76820681935802 1977 6.87623612769255 1978 7.02358440075642 1979 7.21737461428297 1980 7.41894731905489 1981 7.58478560180239 1982 7.70665548502769 1983 7.77823083151952 1984 7.80418153421722 1985 7.77631363145363 1986 7.68005027268443 1987 7.62338077945207 1988 7.59497162782101 1989 7.51046156621468 1990 7.38734055198594 1991 7.28091624772186 1992 7.16901978321514 1993 7.0928348646609 1994 7.09087530976948 1995 7.10073920595727 1996 7.07048860807077 1997 6.98583741484966 1998 6.8190500284612 1999 6.56283477130808 2000 6.28083293093921 2001 6.05482646849553 2002 5.87438199930283 2003 5.68607588757216 2004 5.52509940418214 2005 5.39095297433974 2006 5.20129411111888 2007 4.96710257163072 2008 4.78464882188968 2009 4.64390444259774 2010 4.5187647238849 2011 4.44223519568304 2012 4.40410176386993 2013 4.37430596100789 2014 4.3687493945122 2015 4.36946706798867 2016 4.39264757619323 2017 4.44763882233935 2018 4.45878360741321 2019 4.42908928465311 2020 4.44320116564096 2021 4.47479245088944 2022 4.48343805330534 2023 4.49934289792754