Year % of female population 1960 7.55553210573524 1961 7.61402216709897 1962 7.69709459732493 1963 7.82161234991424 1964 8.00353185930621 1965 8.23230797123346 1966 8.51935063052616 1967 8.86088174223767 1968 9.20449745559869 1969 9.51645780313356 1970 9.77268803128802 1971 9.97096341390152 1972 10.115618467038 1973 10.2256654747716 1974 10.3462326626526 1975 10.4897280776381 1976 10.649126590468 1977 10.8246195399742 1978 11.005321835062 1979 11.1746466239832 1980 11.3685489888384 1981 11.5758751142784 1982 11.7504196850364 1983 11.9112397784026 1984 12.0665977498925 1985 12.1967444779777 1986 12.3139053099268 1987 12.4295706236643 1988 12.534401360392 1989 12.6346638663285 1990 12.682282461069 1991 12.6740528073153 1992 12.6624914867786 1993 12.6699152683047 1994 12.7065485163805 1995 12.7375198926348 1996 12.7297471318192 1997 12.7229714435918 1998 12.73320215712 1999 12.7414194299011 2000 12.7731372961676 2001 12.8107365070178 2002 12.8448527319935 2003 12.8539109920801 2004 12.8193686344927 2005 12.7835960440529 2006 12.7628164506548 2007 12.7706672964466 2008 12.8430808520192 2009 12.9917561985635 2010 13.1325716314179 2011 13.2563590589461 2012 13.4486164295739 2013 13.7038561442708 2014 14.0159780146937 2015 14.3661661157965 2016 14.7167006733671 2017 15.1014308535308 2018 15.5376941654317 2019 16.0214994827244 2020 16.5740772414737 2021 17.1730456526789 2022 17.7768073121552 2023 18.355196117524