Year % of female population 1960 4.62573446783701 1961 4.62723817215846 1962 4.62748296427827 1963 4.62716609387803 1964 4.62820622248696 1965 4.63108387062256 1966 4.63527798597158 1967 4.64132160041906 1968 4.64845346039201 1969 4.65422439663901 1970 4.65803232228662 1971 4.65931258178321 1972 4.65869897245622 1973 4.65836032453423 1974 4.6589501076762 1975 4.6611319162546 1976 4.66471816842542 1977 4.67045873620192 1978 4.68369221111333 1979 4.69822751442143 1980 4.70386332924888 1981 4.70273212659817 1982 4.69776713374944 1983 4.69039844150078 1984 4.68487377514504 1985 4.67875518570247 1986 4.66666536106226 1987 4.64519572161315 1988 4.59920128027878 1989 4.52729643482724 1990 4.44125820971126 1991 4.35210786110001 1992 4.27045758869955 1993 4.21743544467665 1994 4.2149321527689 1995 4.22116316084026 1996 4.20271206923411 1997 4.18046514348891 1998 4.1701695009854 1999 4.16683535514106 2000 4.16314015181416 2001 4.16120323949094 2002 4.16049605496277 2003 4.15782222203384 2004 4.15642652978675 2005 4.15910139211084 2006 4.16251866030655 2007 4.16367085080776 2008 4.16114661941788 2009 4.15295342980601 2010 4.13788704861825 2011 4.11656726725276 2012 4.0868170663422 2013 4.04960389411367 2014 4.00695837273025 2015 3.96046924924065 2016 3.91429141742871 2017 3.86877779592851 2018 3.8258524489802 2019 3.79828902394169 2020 3.79439464691898 2021 3.80766947677756 2022 3.83328833295849 2023 3.87118611630096