Year % of female population 1960 8.0468431269879 1961 9.01973598397607 1962 9.7326406800407 1963 10.2031473810131 1964 10.5655330297243 1965 10.8903025086236 1966 11.2443828890676 1967 11.6557789828554 1968 12.1041509112603 1969 12.5668535560086 1970 13.0200099927102 1971 13.4325528883971 1972 13.7657742390749 1973 13.9888076689835 1974 14.0706579719832 1975 13.9840156293952 1976 13.6615466865057 1977 13.1014821330551 1978 12.5170597738388 1979 12.0153336591925 1980 11.5825057917589 1981 11.1285687209888 1982 10.7337348718996 1983 10.3754226685505 1984 10.0276764996694 1985 9.75657815852647 1986 9.56924155572098 1987 9.43737735314151 1988 9.28919691686431 1989 9.24409605776166 1990 9.27068542963814 1991 9.31248570849995 1992 9.42181755776433 1993 9.6282367297285 1994 9.87876974908715 1995 10.1147198083342 1996 10.326709176885 1997 10.5265920946466 1998 10.7001561219546 1999 10.8351811369934 2000 10.9157949246659 2001 10.9081346227635 2002 10.8092041336863 2003 10.6267727596722 2004 10.35677099429 2005 9.97442211440191 2006 9.49301280892499 2007 8.96214029944734 2008 8.41842385700468 2009 7.8867798813439 2010 7.39313636176927 2011 6.96742697790545 2012 6.63852500284569 2013 6.42054226577074 2014 6.30319476247377 2015 6.28900639923436 2016 6.3845696335956 2017 6.57143357974973 2018 6.80766385475149 2019 7.05041774760296 2020 7.29157504796179 2021 7.5263162730935 2022 7.7306077791763 2023 7.89257553199942