Year % of female population 1960 8.4210264137785 1961 8.30317603923623 1962 8.34045754539548 1963 8.54816528781297 1964 8.93775343840141 1965 9.45134160993192 1966 10.0018235740131 1967 10.5200651807661 1968 10.9543040446797 1969 11.2750299213133 1970 11.4616571050849 1971 11.5638134894135 1972 11.7193359952117 1973 11.9435745851503 1974 12.1674079206941 1975 12.3646209386282 1976 12.4921423703243 1977 12.4894282272739 1978 12.3126178894073 1979 11.9613027280375 1980 11.4827662472208 1981 11.0241279610436 1982 10.8071016229169 1983 10.7933172218136 1984 10.8074962245219 1985 10.7933994173656 1986 10.6924465943433 1987 10.4569751836772 1988 10.1043734954578 1989 9.69776989076583 1990 9.28238154695406 1991 8.95266976285136 1992 8.85312026705406 1993 8.93729243992967 1994 9.07621652454988 1995 9.25535401319445 1996 9.50475654611193 1997 9.82699712565757 1998 10.1775610272914 1999 10.5044477738479 2000 10.7673564964243 2001 10.9333341590827 2002 10.9830165165211 2003 10.9254158830328 2004 10.7836110091315 2005 10.5715772856228 2006 10.2995297197984 2007 9.98895363287398 2008 9.67111053163401 2009 9.37190939756975 2010 9.11281771996706 2011 8.91388448095253 2012 8.74176693056842 2013 8.56318630658122 2014 8.41822160016566 2015 8.3098702669119 2016 8.19905941209599 2017 8.11363773448338 2018 8.05349402887358 2019 7.94468976784382 2020 7.77946753783185 2021 7.61276183917886 2022 7.44984351684644 2023 7.29294832798943