Year % of female population 1960 3.94263891217076 1961 4.08783347187277 1962 4.23233281911292 1963 4.39178313866614 1964 4.57383336137753 1965 4.79570163039054 1966 5.02870069434698 1967 5.24635231217558 1968 5.46468940404975 1969 5.69132426308011 1970 5.93755977543256 1971 6.16062876624834 1972 6.34543039398881 1973 6.52730669050026 1974 6.7120845539756 1975 6.92217328004647 1976 7.16076260351792 1977 7.39845926678203 1978 7.61789479434096 1979 7.81853944246483 1980 8.03292657871426 1981 8.24039338420312 1982 8.40817681698451 1983 8.55470346371567 1984 8.70500192285135 1985 8.90944768408683 1986 9.13078780949592 1987 9.32217083537619 1988 9.50149608857872 1989 9.66789534252432 1990 9.85657928219353 1991 10.0784247374342 1992 10.2966160255913 1993 10.5066859462471 1994 10.7240691336286 1995 11.0001837703431 1996 11.2319942507494 1997 11.3423962179312 1998 11.4610341657178 1999 11.6015789902682 2000 11.7442653252377 2001 11.9322619594926 2002 12.1547107168205 2003 12.3743416855308 2004 12.5752266422623 2005 12.7481958108475 2006 12.872951567495 2007 12.9259341999733 2008 12.9670247477753 2009 13.0692333994283 2010 13.2352442544949 2011 13.4751243630975 2012 13.795227491344 2013 14.1806935907993 2014 14.6462649885753 2015 15.1861085206086 2016 15.758117254962 2017 16.3499215861573 2018 16.9844252656967 2019 17.6761035395462 2020 18.4321024351093 2021 19.2695996039601 2022 20.1204235438143 2023 20.9988381118595