Year % of female population 1960 3.15309638522912 1961 3.23455610970685 1962 3.32266645278182 1963 3.39140939657016 1964 3.43273642889592 1965 3.44889248392552 1966 3.44253689362715 1967 3.46252737432222 1968 3.53055037360968 1969 3.63645271407642 1970 3.75566069508591 1971 3.88068059351761 1972 3.98898811466199 1973 4.05297241807414 1974 4.10029344394797 1975 4.1402442385991 1976 4.17206164631093 1977 4.18371601004799 1978 4.17842837402828 1979 4.17521440051769 1980 4.24016415560062 1981 4.35363001199313 1982 4.47496686909851 1983 4.63904084038067 1984 4.82594724197274 1985 4.98319469973591 1986 5.13130106080972 1987 5.28508585861987 1988 5.41343769940001 1989 5.5286677312964 1990 5.6231920131833 1991 5.70585909244805 1992 5.79820820814064 1993 5.89541560180926 1994 5.98317661983709 1995 6.07486868003569 1996 6.16559819440455 1997 6.21870716081211 1998 6.20748264579797 1999 6.14738201265695 2000 6.13815819711107 2001 6.23841472954192 2002 6.39508313503647 2003 6.58041779789067 2004 6.75934015840757 2005 6.72777021750508 2006 6.52681935550292 2007 6.58438103045324 2008 6.93708255533553 2009 7.35200147311449 2010 7.76453952624786 2011 8.0413217370623 2012 7.92014724595365 2013 7.44499509950826 2014 6.89522359344633 2015 6.4669215712692 2016 6.19160203883752 2017 5.96788775462461 2018 5.83324178359399 2019 5.78532739139504 2020 5.75106984733735 2021 5.74193294130252 2022 5.79905402498949 2023 5.88445916492374