Year % of female population 1960 0.746418103369805 1961 0.783326709939507 1962 0.750665636004466 1963 0.640258446808333 1964 0.556181702357035 1965 0.496604278927399 1966 0.455465587044534 1967 0.433369447453955 1968 0.429560993163008 1969 0.431298244579282 1970 0.436545057686311 1971 0.444539584002283 1972 0.455148871610089 1973 0.466830806683634 1974 0.479278838309675 1975 0.491167657677498 1976 0.509621817323207 1977 0.529894732755776 1978 0.538632986627043 1979 0.538739767751761 1980 0.529639694041868 1981 0.519360537338402 1982 0.527122509252682 1983 0.54547046827889 1984 0.554657678109888 1985 0.55088926556531 1986 0.539929364534898 1987 0.547913931853205 1988 0.568457845159906 1989 0.580938429328589 1990 0.585690098451119 1991 0.583378096463505 1992 0.583247592011801 1993 0.58324951549199 1994 0.580831352767134 1995 0.581325662231811 1996 0.58235287147952 1997 0.580945911124645 1998 0.58533026869612 1999 0.596001465671231 2000 0.616738591185565 2001 0.648075412411626 2002 0.706932281569624 2003 0.795813258016282 2004 0.883370806330732 2005 0.960108848911785 2006 1.0193835676242 2007 1.0534358590867 2008 1.07033228145815 2009 1.08501506224841 2010 1.0988720572534 2011 1.10986048216109 2012 1.10824862505637 2013 1.0931036960248 2014 1.07570591612847 2015 1.06470765824696 2016 1.0586067818553 2017 1.0530930297851 2018 1.05358056577569 2019 1.05870334139689 2020 1.06557260281778 2021 1.07355883354242 2022 1.07837111378168 2023 1.0784473251252