Year % of female population 1960 1.21992277845917 1961 1.2352974767987 1962 1.24907113340118 1963 1.27247980512928 1964 1.34559408145344 1965 1.44122604871807 1966 1.52794419166979 1967 1.58939730952572 1968 1.63385139520553 1969 1.66881713337659 1970 1.69906560720674 1971 1.72736348574386 1972 1.73764387694482 1973 1.74866300623069 1974 1.77362521984889 1975 1.80556108221088 1976 1.8498899890355 1977 1.89275939337852 1978 1.93997358361025 1979 2.0102960756307 1980 2.09165960034796 1981 2.18885493949112 1982 2.29189990779341 1983 2.38672305013574 1984 2.49842815178235 1985 2.62042594069902 1986 2.73840219683437 1987 2.85259390688107 1988 2.96488809328099 1989 3.09505223407053 1990 3.23790381253833 1991 3.36354513793862 1992 3.47494637577538 1993 3.6057128446624 1994 3.74206844250554 1995 3.814623581534 1996 3.81856472486053 1997 3.78676850600129 1998 3.75709440290154 1999 3.79034490980768 2000 3.87172944938592 2001 3.98078026246628 2002 4.09518530982062 2003 4.20233610013111 2004 4.33837472827344 2005 4.49091276673497 2006 4.63432286434957 2007 4.76987168046004 2008 4.90182480928873 2009 5.04242415332917 2010 5.18178154587006 2011 5.3272530293952 2012 5.50185045908731 2013 5.72194276791434 2014 5.96601532084113 2015 6.17479109254421 2016 6.3622378691868 2017 6.52406609311883 2018 6.62208934249356 2019 6.69164635317458 2020 6.73852182443206 2021 6.71153419949844 2022 6.59995831861412 2023 6.49121638108891