Year % of female population 1960 3.94575334665108 1961 3.95278576554939 1962 3.96497167105353 1963 3.97915541431807 1964 3.99014083036307 1965 3.99608680177162 1966 3.9977412495637 1967 3.99530216295752 1968 3.98965543436315 1969 3.98234997271159 1970 3.97433636687126 1971 3.96443131055367 1972 3.95191343750946 1973 3.93728248067595 1974 3.92054388298553 1975 3.90215746708297 1976 3.88361274263172 1977 3.86557740032809 1978 3.84777639155315 1979 3.83062723768972 1980 3.81461430790298 1981 3.80174877974319 1982 3.7936201346923 1983 3.78808008753941 1984 3.78183390322557 1985 3.77447828800332 1986 3.76623815937451 1987 3.75717418439319 1988 3.74960855445462 1989 3.74558236850798 1990 3.74435912839954 1991 3.74164384712058 1992 3.73025308700339 1993 3.69803358692852 1994 3.63242298013295 1995 3.57481203637055 1996 3.54653529920638 1997 3.52658429786631 1998 3.52401447053308 1999 3.54813034471707 2000 3.56443401203732 2001 3.55853089257991 2002 3.55192082979947 2003 3.54449414258688 2004 3.53564372200055 2005 3.52616820742658 2006 3.51706580171717 2007 3.50927499361419 2008 3.50157759946635 2009 3.49348898762191 2010 3.48495188736575 2011 3.475322379588 2012 3.46536822626394 2013 3.45806148977119 2014 3.45623341075933 2015 3.46159845940148 2016 3.4775610633912 2017 3.50436507476051 2018 3.53965215782092 2019 3.58468402843954 2020 3.6385279123755 2021 3.69332558271041 2022 3.74794916325583 2023 3.80484886469415