Year % of female population 1960 11.4932596806677 1961 11.7483840065748 1962 11.9733961325339 1963 12.1101502880776 1964 12.2186989802601 1965 12.3618604148895 1966 12.5079315350815 1967 12.6427496019762 1968 12.7576830869623 1969 12.842269320428 1970 12.892170634537 1971 12.9092161278333 1972 12.9071695504277 1973 12.9011476314776 1974 12.9013016069799 1975 12.9186187749436 1976 12.9602718811555 1977 13.0242787781447 1978 13.1036099419269 1979 13.201499241072 1980 13.3118173438003 1981 13.4102990181972 1982 13.4851262462936 1983 13.5274319436906 1984 13.5319378478062 1985 13.5144048416423 1986 13.500374845428 1987 13.5056406025102 1988 13.5243321874017 1989 13.5446053972509 1990 13.5541814748669 1991 13.5381199411358 1992 13.4908593165179 1993 13.4304041687086 1994 13.3731190026733 1995 13.3239272370559 1996 13.2893640109268 1997 13.2571694373959 1998 13.1882574230645 1999 13.0560539261536 2000 12.8611095870448 2001 12.6030885742111 2002 12.3102475194686 2003 12.0462624327503 2004 11.8372633073755 2005 11.6675131951816 2006 11.3742774540167 2007 10.9310232654205 2008 10.6928093742848 2009 10.6149396656972 2010 10.5014304698786 2011 10.4744661169048 2012 10.6792213877647 2013 11.3063649216757 2014 12.2093717710623 2015 12.9949984711656 2016 13.4628414774424 2017 13.7805671098787 2018 13.9600683990234 2019 13.8247924136105 2020 13.575261620169 2021 13.2591368757822 2022 12.6617909975273 2023 11.7390855386161