Year % of female population 1960 7.1140194462201 1961 7.51050941709973 1962 8.3423374026351 1963 9.13371442969402 1964 9.87720892969941 1965 10.5574413517387 1966 11.1367025438868 1967 11.585524227295 1968 11.883070250785 1969 12.0240480961924 1970 12.1060095253385 1971 12.1811773919854 1972 12.2375081281636 1973 12.3030748346763 1974 12.3984530816753 1975 12.5324945100599 1976 12.6761704195691 1977 12.8350439965299 1978 13.0296552102176 1979 13.2299581661402 1980 13.191684182049 1981 12.9232270458727 1982 12.6675029369014 1983 12.4116176413141 1984 12.1342356398304 1985 12.0702089596973 1986 12.2378550570746 1987 12.4412810116634 1988 12.6834317725142 1989 12.946530726399 1990 13.1725938656795 1991 13.3114235188669 1992 13.3835966487607 1993 13.428899438394 1994 13.4639537804572 1995 13.4880939030317 1996 13.482642283295 1997 13.4331057230484 1998 13.334568411452 1999 13.2041399953625 2000 13.0676616639387 2001 12.8925180454357 2002 12.6491472073787 2003 12.3799145049656 2004 12.1165731492083 2005 11.8825627387218 2006 11.7025951588338 2007 11.5789906489357 2008 11.5224732952232 2009 11.5410897522068 2010 11.6366584319762 2011 11.8193228630278 2012 12.0249971092494 2013 12.2147395106066 2014 12.4116558648373 2015 12.6085380807935 2016 12.7882691650808 2017 12.938697538686 2018 13.0469495545036 2019 13.0717555547285 2020 12.9317940079523 2021 12.6643530527182 2022 12.508719208581 2023 12.471775286118