Year % of female population 1960 2.5815548069956 1961 2.58721360373131 1962 2.57985441778018 1963 2.56427161094883 1964 2.54871035584497 1965 2.53605441806071 1966 2.52572625531085 1967 2.51742903238313 1968 2.51027195294579 1969 2.50310099474906 1970 2.49532366304259 1971 2.48809499751859 1972 2.48161287450981 1973 2.47569954832263 1974 2.47081303727647 1975 2.46720348393569 1976 2.46371946671719 1977 2.45914524765458 1978 2.45382757322342 1979 2.44765051652996 1980 2.44028292411664 1981 2.43206732533057 1982 2.42204006890813 1983 2.41179021920085 1984 2.4017041776112 1985 2.38804844430932 1986 2.37188973054215 1987 2.35366923201034 1988 2.3314451691161 1989 2.31011254217108 1990 2.29013746057609 1991 2.26030279726511 1992 2.2371547269415 1993 2.22805343670854 1994 2.21782966889805 1995 2.21042607427138 1996 2.20535270243101 1997 2.19835102996351 1998 2.19341693348412 1999 2.19460382880622 2000 2.20046480478696 2001 2.20849905068139 2002 2.21644729438975 2003 2.21472524400821 2004 2.20031532431749 2005 2.18144822282288 2006 2.16270544068394 2007 2.14509371725645 2008 2.13581197201942 2009 2.13683082133451 2010 2.13856999092017 2011 2.13549290432074 2012 2.13228000079726 2013 2.14230582754798 2014 2.17189816532809 2015 2.21385337525555 2016 2.26385287710257 2017 2.31937776646153 2018 2.36955626226346 2019 2.40702198377761 2020 2.43625727975076 2021 2.46235096924869 2022 2.48892872111799 2023 2.51657256341976