Year % of female population 1960 7.66033930285138 1961 7.3223724810183 1962 7.01905741134836 1963 6.87090643723646 1964 6.86695901265715 1965 6.91358133586187 1966 7.00967615177779 1967 7.1509341220121 1968 7.37356087947901 1969 7.75697738485019 1970 8.24069815182394 1971 8.70557114144072 1972 9.14899271468827 1973 9.56951260336612 1974 9.94582445294746 1975 10.2978305340224 1976 10.6444991843521 1977 10.9755267378676 1978 11.2752212235962 1979 11.5105387052801 1980 11.6264594830774 1981 11.6054442016448 1982 11.4826019822897 1983 11.3006164499702 1984 11.1176777760057 1985 10.9638566742734 1986 10.841124902405 1987 10.7614305311877 1988 10.7321394003179 1989 10.7878633661563 1990 10.8970872355565 1991 10.9755066020313 1992 11.0004523914694 1993 10.9724193520125 1994 10.9106146578742 1995 10.8418401076174 1996 10.785835386915 1997 10.7573660025519 1998 10.7787696017309 1999 10.8794340267165 2000 11.0801568421624 2001 11.3473934850889 2002 11.6205687961153 2003 11.8526861578103 2004 11.9954096258328 2005 12.0116111230111 2006 11.856939524828 2007 11.5020468287525 2008 10.9876525007457 2009 10.3907227624025 2010 9.79768417435573 2011 9.27199604759583 2012 8.81880125697209 2013 8.45486237973983 2014 8.15174702070103 2015 7.85248811788825 2016 7.56019913099198 2017 7.28619525160497 2018 7.01868963643246 2019 6.7546661665647 2020 6.54033597659688 2021 6.44423761675198 2022 6.54540816162715 2023 6.87550360641142