Year % of female population 1960 4.19510096568572 1961 4.18001122514045 1962 4.15563412661921 1963 4.12998632336643 1964 4.12049096739245 1965 4.13628906531126 1966 4.16951867126923 1967 4.21290972023494 1968 4.27283180637566 1969 4.35926574703257 1970 4.46557303408767 1971 4.59666977977363 1972 4.7566937564394 1973 4.91512776292366 1974 5.02564401706481 1975 5.07297212294281 1976 5.06081776021544 1977 4.99022391250461 1978 4.88387403562628 1979 4.78024987681837 1980 4.69782211269997 1981 4.6317251600066 1982 4.58104522802164 1983 4.54448808392239 1984 4.51803965947167 1985 4.49962650712026 1986 4.49319314585771 1987 4.50151219128899 1988 4.52632824248041 1989 4.56787295151259 1990 4.62695327178616 1991 4.70870556694821 1992 4.82090529558606 1993 4.96501095008791 1994 5.11852651454785 1995 5.27708567971993 1996 5.43837382986185 1997 5.58098343703161 1998 5.70153279861323 1999 5.81722852309206 2000 5.93004298340929 2001 6.03986671202187 2002 6.15244870538392 2003 6.26093007544703 2004 6.36595724210704 2005 6.46529953884524 2006 6.55242940204383 2007 6.62830936443256 2008 6.69844415687367 2009 6.76173074862714 2010 6.81317733302226 2011 6.84461217380007 2012 6.86173598807726 2013 6.87126141261195 2014 6.86673864434165 2015 6.84810581223646 2016 6.81784222895563 2017 6.77329862764452 2018 6.71549249664323 2019 6.65493874465453 2020 6.61445288331973 2021 6.59549041913441 2022 6.59800120566699 2023 6.62215239750411