Year % of female population 1960 14.5184270043539 1961 14.86224253588 1962 15.2657571756882 1963 15.7281194703171 1964 16.1733543624031 1965 16.5132130771382 1966 16.673721883358 1967 16.649194517913 1968 16.4908731878823 1969 16.2454594636371 1970 15.8232082771728 1971 15.2157397487095 1972 14.5606358715336 1973 13.8959965358422 1974 13.2729612034838 1975 12.7849336067369 1976 12.4585698979643 1977 12.2923554552052 1978 12.2814321398834 1979 12.3663012661078 1980 12.3786857884651 1981 12.245044822765 1982 12.0126705653021 1983 11.6970392930251 1984 11.3558053909311 1985 11.1627634431705 1986 11.026011278709 1987 10.9134615384615 1988 11.044708074411 1989 11.3103931179354 1990 11.5638810767376 1991 11.9922089596964 1992 12.541462644132 1993 12.8371774824081 1994 12.960235640648 1995 12.95931222172 1996 12.739571589628 1997 12.3730536475998 1998 11.9201980871735 1999 11.4033107599699 2000 10.8434073394324 2001 10.3477871482946 2002 9.91498514800778 2003 9.53829319633899 2004 9.25289843728417 2005 9.02861638672375 2006 8.75852040352631 2007 8.43882618510158 2008 8.15369019745046 2009 7.89112493538439 2010 7.65709935017795 2011 7.56395507117828 2012 7.60793932435723 2013 7.68422412679271 2014 7.78589222946456 2015 7.8896213657877 2016 7.97457648408518 2017 8.03715201115556 2018 8.07605251244907 2019 8.08778504421094 2020 8.07171256670419 2021 8.03810227537407 2022 7.99311186051518 2023 7.93205843924456