Year % of female population 1960 9.97584865364148 1961 10.2391954253187 1962 10.4347696651328 1963 10.5873429857143 1964 10.6307520200355 1965 10.5613101981773 1966 10.4595465396248 1967 10.3524871378951 1968 10.2471115815211 1969 10.1902124382925 1970 10.1883483186294 1971 10.1963972234153 1972 10.2100808311806 1973 10.2147903550532 1974 10.1915261988338 1975 10.1438745117643 1976 10.0868756285424 1977 10.0430548377107 1978 10.0152844935127 1979 10.0005100212319 1980 9.99677507694878 1981 10.1189920128649 1982 10.4051537808596 1983 10.8046612649359 1984 11.2546155385663 1985 11.7356694246892 1986 11.7921461869568 1987 11.2843734457494 1988 10.5930144714019 1989 9.80319481085889 1990 9.01453796643 1991 8.30275917362474 1992 7.84462656621131 1993 7.75496820944878 1994 7.96357183991659 1995 8.41090225126336 1996 8.97886436451756 1997 9.51666806292278 1998 9.9633990369205 1999 10.3199578081581 2000 10.6080202014579 2001 10.8742860088555 2002 11.1366378040695 2003 11.3679356834857 2004 11.5206555183203 2005 11.5390609249099 2006 11.4221639459316 2007 11.1887179316528 2008 10.8711750777663 2009 10.5353852800803 2010 10.232788789107 2011 9.92562236977841 2012 9.55606520467176 2013 9.15912333347523 2014 8.77425449492471 2015 8.394100822159 2016 8.00688633474116 2017 7.69468952842651 2018 7.51201503566393 2019 7.42385151309662 2020 7.45201972427085 2021 7.59016601494151 2022 7.79667673955435 2023 8.07216312200185