Year % of female population 1960 7.10906422790447 1961 6.53350294899966 1962 5.84022321032446 1963 5.14435552113607 1964 4.69669761012028 1965 4.76148849582492 1966 5.26656962944032 1967 5.92026852073843 1968 6.57571742287782 1969 7.01349137587857 1970 7.09814239494332 1971 6.9447715043688 1972 6.67622845128357 1973 6.37855295509357 1974 6.10173225070214 1975 5.87218727996919 1976 5.6975541006169 1977 5.57185569724183 1978 5.45795193339154 1979 5.32374026654922 1980 5.16648499035525 1981 5.01237362258413 1982 4.89516717135368 1983 4.86531583812131 1984 5.15014132087526 1985 5.71703760280157 1986 6.27186406167236 1987 6.66825182255125 1988 6.9035578145014 1989 6.85786425727206 1990 6.410324945874 1991 5.93129285737569 1992 5.81123481079034 1993 5.89293633041502 1994 5.93836269998398 1995 6.08783081683805 1996 6.26204037722974 1997 6.24914468569565 1998 6.17027774554809 1999 6.14950820497844 2000 6.21197180910741 2001 6.37855544380353 2002 6.57932960719348 2003 6.76236455639385 2004 6.96449891954475 2005 7.17163089835378 2006 7.35763071125765 2007 7.54162289032675 2008 7.75111318369307 2009 7.94843423104748 2010 8.08691320042303 2011 8.15664419524399 2012 8.16861224691567 2013 8.13466460514536 2014 8.05977485021606 2015 7.92459168011893 2016 7.74683217310287 2017 7.55426446337727 2018 7.31911251783445 2019 7.06392066563069 2020 6.84957133548386 2021 6.65295511128242 2022 6.46134879836771 2023 6.32286921538912