Year % of female population 1960 2.55270100842065 1961 2.50405136932893 1962 2.44628949738251 1963 2.39553288072952 1964 2.36193062701002 1965 2.35208974127013 1966 2.3647120524276 1967 2.38855007350293 1968 2.41045561807951 1969 2.41832103880645 1970 2.40131072955196 1971 2.36159234656758 1972 2.31151665807742 1973 2.26299535816791 1974 2.22673974996023 1975 2.213809573973 1976 2.22790854112945 1977 2.26008903064654 1978 2.29827567935028 1979 2.33234731074842 1980 2.35282861206968 1981 2.36998980362105 1982 2.38356767654654 1983 2.37751096155807 1984 2.35380584137534 1985 2.32090741781724 1986 2.29116249309852 1987 2.27485962182568 1988 2.2750279855742 1989 2.28794576799086 1990 2.30603633858607 1991 2.32290353634473 1992 2.33187228711086 1993 2.32913406709985 1994 2.31860201081361 1995 2.30636542063234 1996 2.29987828052449 1997 2.30450615373471 1998 2.32245774808161 1999 2.35588089545294 2000 2.40726409876063 2001 2.47956141952724 2002 2.57141730834932 2003 2.68055973419064 2004 2.80170347773673 2005 2.92576562612882 2006 3.04605107434974 2007 3.15983195690635 2008 3.2708033978531 2009 3.38455994096066 2010 3.50687263514187 2011 3.64120852700753 2012 3.78086069459095 2013 3.92005517095037 2014 4.05698293457905 2015 4.18403275866566 2016 4.29582236382727 2017 4.38944021334975 2018 4.41868557152656 2019 4.45862853877004 2020 4.52857519902284 2021 4.57168652196291 2022 4.62272573644406 2023 4.67615801565988