Year % of female population 1960 10.565298825132 1961 10.3069551190815 1962 10.0654636140071 1963 9.90062445444169 1964 9.75775853682265 1965 9.60655874499333 1966 9.52994464016105 1967 9.54782169367689 1968 9.61689992870811 1969 9.73027316861097 1970 9.89702266901143 1971 10.0724594793402 1972 10.2392822351564 1973 10.3907348420459 1974 10.5189265079108 1975 10.643354651032 1976 10.7716314952821 1977 10.8951072766489 1978 11.063528018562 1979 11.2929340040644 1980 11.5307010475423 1981 11.7413853288785 1982 11.9004985922456 1983 12.0445468780239 1984 12.0350686187434 1985 11.8093810644997 1986 11.4877178432293 1987 11.0969095663381 1988 10.6602729620066 1989 10.2634180970007 1990 9.92143158103453 1991 9.60180876923151 1992 9.335000665665 1993 9.0954026365243 1994 8.91646563917587 1995 8.88522982378002 1996 9.00445002786797 1997 9.17993879751017 1998 9.40421733317957 1999 9.6859616506423 2000 9.94406822275438 2001 10.1072229735749 2002 10.1956257835977 2003 10.3300558772971 2004 10.4246910724269 2005 10.385319428515 2006 10.2514492292608 2007 9.98016012295551 2008 9.69283401328187 2009 9.47520224347681 2010 9.19767567762659 2011 8.87363445302806 2012 8.56042506151268 2013 8.212115306249 2014 7.94453977720265 2015 7.85749673781828 2016 7.8479390370627 2017 7.8739480776635 2018 7.88704733524043 2019 7.78993228204764 2020 7.62307318136835 2021 7.48563270983565 2022 7.38786018417665 2023 7.37055963776982