Year % of female population 1960 1.23649991920336 1961 1.22389364461134 1962 1.18004646113231 1963 1.13403946587645 1964 1.12342451698076 1965 1.15767933454168 1966 1.2339226810006 1967 1.34996437865594 1968 1.47933734622204 1969 1.5869318535039 1970 1.6630203190837 1971 1.7098327128859 1972 1.7263099414912 1973 1.72961563408037 1974 1.74502075326672 1975 1.7822727216166 1976 1.84062120875005 1977 1.92084600378714 1978 2.0125201093308 1979 2.09921768800198 1980 2.17073045584704 1981 2.22534912544036 1982 2.2615201023623 1983 2.27444227775472 1984 2.25411502780564 1985 2.1999529143677 1986 2.11834572635191 1987 2.02025367677683 1988 1.93684400426396 1989 1.91447142498062 1990 1.97530172553547 1991 2.11489132080521 1992 2.40993857625695 1993 2.8150621680565 1994 3.18804024791123 1995 3.4482078981785 1996 3.53585854672115 1997 3.60136821117443 1998 3.69786658625353 1999 3.80840317650111 2000 3.91271261975189 2001 4.00518605954427 2002 4.09037834418016 2003 4.19404747924537 2004 4.3465950615072 2005 4.51501606679436 2006 4.67969362909316 2007 4.8118497545591 2008 4.8810239427679 2009 4.90328109850496 2010 4.89052428098721 2011 4.83230428631642 2012 4.70766906561601 2013 4.49824775502049 2014 4.23304489940778 2015 3.99431701508247 2016 3.88249140664042 2017 3.99396919185116 2018 4.25049533424765 2019 4.57280511881607 2020 4.93333641837427 2021 5.23800477547989 2022 5.48573516983028 2023 5.75843114405968