Year % of female population 1960 12.3321530068766 1961 12.130408186603 1962 12.0100524805165 1963 11.8886303007612 1964 11.8252483963466 1965 11.8271385641837 1966 11.8358884258012 1967 11.8402898271575 1968 11.8277448400946 1969 11.7881170042655 1970 11.732642933448 1971 11.6700632683445 1972 11.5951722503194 1973 11.5165994872605 1974 11.4644210678331 1975 11.4423140172507 1976 11.433759121477 1977 11.4195730135427 1978 11.3937230617168 1979 11.3749451023823 1980 11.3675612215515 1981 11.3648535920192 1982 11.2865655465919 1983 11.0486054430769 1984 10.6314153220772 1985 10.0429977789966 1986 9.35391288723452 1987 8.79267303987917 1988 8.56223591451112 1989 8.66304842602655 1990 9.0308738587761 1991 9.57791078044208 1992 10.1758181449583 1993 10.6802274118315 1994 11.0460000402703 1995 11.2948529770708 1996 11.497648299231 1997 11.7116266368311 1998 11.9087743983041 1999 12.0300526664046 2000 12.0235641927215 2001 11.8903740561537 2002 11.6529263281987 2003 11.3512807102505 2004 11.0350389639445 2005 10.7412862815743 2006 10.4381051113526 2007 10.0690470679992 2008 9.66173222147341 2009 9.26576157757755 2010 8.87295759612304 2011 8.49935766154382 2012 8.20913204901344 2013 8.0151464777991 2014 7.90417347803085 2015 7.88584185549802 2016 8.00715698605251 2017 8.2160266301617 2018 8.47276899927776 2019 8.69297078880187 2020 8.80340476869794 2021 8.87707187503796 2022 8.9394837338993 2023 8.92602938614312