Year % of female population 1960 35.1892987161486 1961 35.0818721684322 1962 34.5478905275034 1963 33.9499243813648 1964 33.3451465999539 1965 32.770054809366 1966 32.2359864226121 1967 31.7168797059963 1968 31.1694527163985 1969 30.5643166814082 1970 29.8899240551725 1971 29.1536652769469 1972 28.3765375031378 1973 27.6825256617222 1974 27.1608244348215 1975 26.6447443608221 1976 26.0529718114939 1977 25.4877508788101 1978 25.0053443319436 1979 24.6264061241054 1980 24.3572654230523 1981 24.1916006584738 1982 24.1930347682598 1983 24.3688561534029 1984 24.551109041225 1985 24.6437993265975 1986 24.6664573316858 1987 24.6414562187542 1988 24.5869094038665 1989 24.5109192245515 1990 24.4089846659646 1991 24.2688149000085 1992 24.1464927839333 1993 24.1985122502522 1994 24.2689037725369 1995 24.1402062823967 1996 23.8544189244819 1997 23.4515647748735 1998 22.9694804685385 1999 22.436977340679 2000 21.8749334797842 2001 21.3271450075263 2002 20.8710036922938 2003 20.4423861786039 2004 19.9421282685027 2005 19.3851544923518 2006 18.7940333317137 2007 18.1956768715059 2008 17.6177669898449 2009 17.0822321908557 2010 16.6040955934455 2011 16.2710816684266 2012 16.0908073701901 2013 15.9476379802436 2014 15.8233506929661 2015 15.740399971638 2016 15.6979895865401 2017 15.6694608713243 2018 15.6373049498472 2019 15.6125371922188 2020 15.5879567037184 2021 15.5543138977205 2022 15.4952754304777 2023 15.4054913432646