Year % of female population 1960 17.4958732757193 1961 17.6548828871547 1962 17.7834500944881 1963 17.8998625946524 1964 18.0017112448007 1965 18.089315241956 1966 18.0759010319122 1967 17.9483871581171 1968 17.7759383592489 1969 17.5641968711547 1970 17.3083761620568 1971 17.0140144512225 1972 16.7185502927398 1973 16.4564759524183 1974 16.2502624508842 1975 16.1037322810252 1976 16.0209506208127 1977 15.9643837633684 1978 15.8553847982638 1979 15.6700297275458 1980 15.4240868748502 1981 15.157343007248 1982 14.9064264175317 1983 14.6943952676521 1984 14.5268462361755 1985 14.389349415655 1986 14.2330534292429 1987 14.0041555350079 1988 13.6909725412341 1989 13.2802632384704 1990 12.8134693232226 1991 12.3345618161022 1992 11.8672752319783 1993 11.4415303869405 1994 11.0626617547828 1995 10.6740289322831 1996 10.238703765392 1997 9.78579805571562 1998 9.32735195140354 1999 8.87434599531653 2000 8.46558004158847 2001 8.13103330125163 2002 7.86937107807042 2003 7.69215674423606 2004 7.60210012237511 2005 7.60592211936587 2006 7.67330708988135 2007 7.7565827349757 2008 7.84094605238923 2009 7.92167517528241 2010 8.02117819588287 2011 8.14536522813799 2012 8.31483160991296 2013 8.51840081290565 2014 8.70311240021645 2015 8.8392885439791 2016 8.88814752657339 2017 8.84980031188391 2018 8.74091741157478 2019 8.57244438778071 2020 8.35845370253141 2021 8.11979532707698 2022 7.8690726451781 2023 7.61440797973008