Year % of female population 1960 6.45315642748725 1961 6.47591266870367 1962 6.53096099782292 1963 6.61003020718113 1964 6.7204023699041 1965 6.87090628089471 1966 7.04951356206182 1967 7.23163323861483 1968 7.41364636821216 1969 7.57180740495515 1970 7.66920377668761 1971 7.70531772662744 1972 7.68195691282936 1973 7.58234716236384 1974 7.39158246059519 1975 7.12404085200804 1976 6.79664449461998 1977 6.40415880294944 1978 5.95707300092454 1979 5.52319198822059 1980 5.15897801688762 1981 4.87492797508857 1982 4.69892167237557 1983 4.64718516918555 1984 4.67526807414495 1985 4.76116801289788 1986 4.87464546946204 1987 4.97181761096464 1988 5.042912614124 1989 5.08323736748917 1990 5.09137492352795 1991 5.09599772485109 1992 5.12868422707096 1993 5.1971032641271 1994 5.28698957012993 1995 5.36827684436514 1996 5.38503029241247 1997 5.31244079180047 1998 5.18352310099337 1999 5.01668549383548 2000 4.83201132713038 2001 4.70041525059545 2002 4.65391305786311 2003 4.63764405945818 2004 4.63078090239431 2005 4.63456673441381 2006 4.60572240934112 2007 4.52251294880933 2008 4.4255264325074 2009 4.34245870278966 2010 4.26089559628693 2011 4.1867441956424 2012 4.14610905626017 2013 4.13622292110215 2014 4.13127822235112 2015 4.14105315236017 2016 4.1726699089815 2017 4.20241580859233 2018 4.22691101390591 2019 4.27098214422956 2020 4.34152643571489 2021 4.44259470340996 2022 4.55230595038195 2023 4.63310134270264