Year % of female population 1960 6.51015301151884 1961 6.57674079475027 1962 6.65484972499544 1963 6.74759695061319 1964 6.85478767166635 1965 6.97321077616182 1966 7.09712386182975 1967 7.22630058203033 1968 7.27902501603592 1969 7.259899340427 1970 7.23868011093056 1971 7.1616282275108 1972 6.99955306152853 1973 6.79977968533971 1974 6.64481962550853 1975 6.64194895417861 1976 6.85853147982163 1977 7.14561185211058 1978 7.35528445957143 1979 7.51555902873431 1980 7.74321409446468 1981 8.08319304194888 1982 8.44360826824947 1983 8.7294750635975 1984 8.94189306237252 1985 9.15713125506239 1986 9.2924138223507 1987 9.37631013861562 1988 9.51940940777872 1989 9.66637318618984 1990 9.77040335491526 1991 9.80120318624619 1992 9.77624710602379 1993 9.75198838378811 1994 9.78558473633109 1995 9.91753007984482 1996 9.86715934935633 1997 9.65955027934859 1998 9.56441254391661 1999 9.553426980058 2000 9.61483330932295 2001 9.75203208413924 2002 9.98310209500786 2003 10.3269443335848 2004 10.7907249582556 2005 11.1999864210127 2006 11.5530500038413 2007 12.0196968908731 2008 12.6087306545663 2009 13.312182992072 2010 13.9994277737799 2011 14.5660299639961 2012 14.9809922688398 2013 15.236215581249 2014 15.348925332364 2015 15.3615245453042 2016 15.3281916882783 2017 15.2931578500873 2018 15.2727650813963 2019 15.2461265880592 2020 15.0887622889765 2021 14.6841294973989 2022 14.1254990479143 2023 13.499969061985