Year % of female population 1960 4.470945163566305 1961 4.412556386702208 1962 4.360855915143817 1963 4.305781166220417 1964 4.266196015205231 1965 4.240800882999031 1966 4.212876890742779 1967 4.184762551532459 1968 4.15642203176492 1969 4.12266739425998 1970 4.090473997340235 1971 4.073506203323016 1972 4.072950865972109 1973 4.075762635472948 1974 4.069925657433482 1975 4.052130415747318 1976 4.0220489159942705 1977 3.984313415739871 1978 3.9428933022720853 1979 3.9030469682893068 1980 3.8716179653229243 1981 3.8528655368359868 1982 3.8464921857338927 1983 3.8549383610387364 1984 3.881965451321769 1985 3.9256468634066986 1986 3.988375065758589 1987 4.074904398868764 1988 4.186796198330619 1989 4.319181930010189 1990 4.465184152059738 1991 4.609220241672561 1992 4.740448226025477 1993 4.870475129716614 1994 5.013520774064594 1995 5.18363870614489 1996 5.3783838351054785 1997 5.584075046284527 1998 5.792272117110639 1999 5.995512053654461 2000 6.186387276449467 2001 6.358557604235269 2002 6.502192726630986 2003 6.61214503454833 2004 6.698603654993285 2005 6.7607272263177585 2006 6.791470772592141 2007 6.792629689687892 2008 6.766720939276282 2009 6.725929996052075 2010 6.699639767586762 2011 6.699649038096657 2012 6.711107432193952 2013 6.721061882306471 2014 6.715076061839751 2015 6.676358191898214 2016 6.608129887535343 2017 6.531784702509015 2018 6.460008091588702 2019 6.408099795314635 2020 6.387779889222463 2021 6.394031943420953 2022 6.4220882215938815 2023 6.470096767869893