Year % of female population 1960 35.4082365690027 1961 35.7028686119867 1962 36.1365013941084 1963 36.4600948441126 1964 36.7127904913961 1965 36.8413206825003 1966 36.7955903432059 1967 36.6261850725128 1968 36.3388780497616 1969 35.9168887977582 1970 35.3572303355672 1971 34.6688827923183 1972 33.8764502178319 1973 33.0234406038935 1974 32.1270047235123 1975 31.1911176229637 1976 30.2397710118219 1977 29.3255738613521 1978 28.5001748048013 1979 27.7802264080913 1980 27.1048238832606 1981 26.4773948734427 1982 25.9603269165617 1983 25.5462254927966 1984 25.2092026530443 1985 24.9102683118416 1986 24.5955929180996 1987 24.238540748158 1988 23.8475078125583 1989 23.4573004293604 1990 23.0936389514224 1991 22.7474809001534 1992 22.4430724586183 1993 22.1943922889362 1994 21.9818362319373 1995 21.80379445133 1996 21.6401311168345 1997 21.4519885803573 1998 21.2381577029588 1999 21.0554828388598 2000 20.8676531419407 2001 20.6323252785415 2002 20.4190989265046 2003 20.2417189219809 2004 20.0426241329702 2005 19.7893337314876 2006 19.5104595548538 2007 19.2698548098852 2008 19.1346504644571 2009 19.0654930044658 2010 18.9490462485079 2011 18.7651705877246 2012 18.543482404311 2013 18.2967110883603 2014 18.0277440203281 2015 17.7310122110516 2016 17.4222118233211 2017 17.1317656354673 2018 16.872495746199 2019 16.628870146687 2020 16.3975643964013 2021 16.1885273902409 2022 15.9719687070327 2023 15.7047382430024