Year % of female population 1960 1.3422037612982 1961 1.35196873273439 1962 1.33314492569658 1963 1.29489524398057 1964 1.25023037755842 1965 1.20510399422763 1966 1.1769974144988 1967 1.19453543311969 1968 1.23471696799218 1969 1.26559678590449 1970 1.29493877762877 1971 1.31787568002252 1972 1.3038106694766 1973 1.26668113883123 1974 1.24350795543844 1975 1.2402353480394 1976 1.24724768963768 1977 1.25830574215791 1978 1.28534974109784 1979 1.34006617684287 1980 1.3912782489252 1981 1.42349278307607 1982 1.46195765181021 1983 1.49548184420771 1984 1.50978175638715 1985 1.52549414605767 1986 1.56538085741764 1987 1.60463024704378 1988 1.61574219021016 1989 1.62208108365094 1990 1.64859552039858 1991 1.70226190851472 1992 1.77849145152629 1993 1.88098193671207 1994 1.99573578966279 1995 2.07460253544253 1996 2.12556520093633 1997 2.17887249897873 1998 2.23833277273057 1999 2.32688042922041 2000 2.42773519976309 2001 2.52625005872287 2002 2.64995476752531 2003 2.77072793318623 2004 2.89222809449899 2005 3.04184476239173 2006 3.19100678350729 2007 3.31748795801193 2008 3.43468394376172 2009 3.54492585531975 2010 3.62608454787023 2011 3.67548235949322 2012 3.73659571529214 2013 3.80909346744834 2014 3.84123004232264 2015 3.82798564381888 2016 3.76924013375179 2017 3.72733504112471 2018 3.784277249052 2019 3.92286333681155 2020 4.0947183743895 2021 4.25608123034329 2022 4.41612554536932 2023 4.57038627281069