Year % of female population 1960 38.0053147894589 1961 39.3352922579304 1962 40.5485438992142 1963 41.5927251565052 1964 42.3397771265742 1965 42.794963309354 1966 43.1140420798128 1967 43.321176733043 1968 43.4123542440569 1969 43.4008205792222 1970 43.2930733112918 1971 43.0981579814668 1972 42.8143611632286 1973 42.449281997509 1974 42.0259610767607 1975 41.5657119772148 1976 41.098100077029 1977 40.645129048021 1978 40.216107513976 1979 39.8317594883084 1980 39.4972845031631 1981 39.2297181718021 1982 39.0581480768551 1983 38.9853409644399 1984 39.0036060268169 1985 39.0991763556229 1986 39.2486258395037 1987 39.4118348604483 1988 39.5424943529974 1989 39.6245161708261 1990 39.6130642254353 1991 39.4876789599754 1992 39.3139233986129 1993 39.1184555561859 1994 38.8715074847805 1995 38.5699089733149 1996 38.28551159623 1997 37.9547525638658 1998 37.4681478680869 1999 36.8485385223086 2000 36.1078019358352 2001 35.2572526415273 2002 34.3425184786213 2003 33.4465931330714 2004 32.5740870643575 2005 31.7533983780799 2006 31.0373925992947 2007 30.395875037675 2008 29.8340405299417 2009 29.3931333756634 2010 29.0986342807292 2011 28.9491126546339 2012 28.9286959324799 2013 29.0083354515411 2014 29.1567789851382 2015 29.3416799524783 2016 29.5459437792739 2017 29.7561179582066 2018 29.9380952800918 2019 30.0667575341714 2020 30.1285887134677 2021 30.1127565153304 2022 30.0188356475725 2023 29.8398043090095