Year % of female population 1960 4.24359563521026 1961 4.1249751945847 1962 3.99629249788664 1963 3.89496644715166 1964 3.80700267961748 1965 3.73464257287636 1966 3.67844176534567 1967 3.63750707034622 1968 3.61307299159263 1969 3.6033285251517 1970 3.58328641381311 1971 3.55802742799151 1972 3.55216418892251 1973 3.55549204658383 1974 3.55719694419599 1975 3.56040480708413 1976 3.5698683142982 1977 3.57939834792258 1978 3.57959754273862 1979 3.56731148360066 1980 3.52774941223966 1981 3.48144070922899 1982 3.435545190989 1983 3.36967152637569 1984 3.28659740171598 1985 3.18792415672189 1986 3.08025261946011 1987 2.96743460227506 1988 2.85272518521728 1989 2.73939251248766 1990 2.60459581906299 1991 2.46472064006931 1992 2.36126824622099 1993 2.2956861471542 1994 2.27138933674855 1995 2.29106428556329 1996 2.35096789017175 1997 2.44488662552134 1998 2.56724120090792 1999 2.71119232486845 2000 2.89989712916123 2001 3.13194424101407 2002 3.37153413482004 2003 3.60484758856368 2004 3.8235442705439 2005 4.02672481046588 2006 4.21887598335113 2007 4.40082202589735 2008 4.57004206765849 2009 4.72457815232456 2010 4.83758762776262 2011 4.89812481715316 2012 4.92582177833802 2013 4.92454548471184 2014 4.89135188721881 2015 4.83046174803326 2016 4.75167373930642 2017 4.67107556757556 2018 4.61380659070447 2019 4.59325095843561 2020 4.60967240820089 2021 4.66590319726775 2022 4.76782043931209 2023 4.91070019748436