Year % of female population 1960 3.84000286313798 1961 3.66424888321509 1962 3.43549415758551 1963 3.18534931277331 1964 2.95792801525651 1965 2.77398199113809 1966 2.62479511849861 1967 2.50763659869601 1968 2.4239388666406 1969 2.37316639459001 1970 2.35053608248368 1971 2.35671148768738 1972 2.39268028926028 1973 2.44487136815316 1974 2.49236656506793 1975 2.52809622853279 1976 2.55267772297317 1977 2.56363970637294 1978 2.56685615398931 1979 2.57337989943268 1980 2.5856702607573 1981 2.60272119688219 1982 2.62478658905454 1983 2.64542352266974 1984 2.65466802358325 1985 2.64916968400747 1986 2.63211034729345 1987 2.60493044463658 1988 2.56970228950216 1989 2.52993782179986 1990 2.48785356597121 1991 2.44403097102368 1992 2.39995501131298 1993 2.35918663026297 1994 2.32579127164341 1995 2.30181741934272 1996 2.28756820411948 1997 2.28296970520993 1998 2.29639220927602 1999 2.37325699805527 2000 2.49741997075864 2001 2.6174440418397 2002 2.73246381200019 2003 2.83504105390107 2004 2.88704817759616 2005 2.90010566545873 2006 2.91439996652066 2007 2.92945304840073 2008 2.94458940223189 2009 2.95866275862558 2010 2.97142341700061 2011 2.98383742745964 2012 2.99619428680984 2013 3.008639466562 2014 3.0225754450404 2015 3.03870956749552 2016 3.05984108409283 2017 3.08913627767461 2018 3.12766455977475 2019 3.17612219136894 2020 3.23461690594535 2021 3.30351368418528 2022 3.37628936449917 2023 3.44313433089754