Year % of female population 1960 2.65025730312625 1961 2.55846816451545 1962 2.47057596809301 1963 2.38219451026732 1964 2.28592910588036 1965 2.27231486955555 1966 2.35262166245141 1967 2.4451029473788 1968 2.5474697823052 1969 2.65996611967273 1970 2.78023587759163 1971 2.83865288532694 1972 2.81231539237986 1973 2.76662901634441 1974 2.71677686799822 1975 2.66528153601682 1976 2.61639122253104 1977 2.56749103266 1978 2.51952240320331 1979 2.47388445459324 1980 2.43692583764095 1981 2.41835549244869 1982 2.41295718122729 1983 2.40891370265197 1984 2.40436651065077 1985 2.39843367596672 1986 2.39114792886652 1987 2.38677550342192 1988 2.38694599031109 1989 2.38672758385164 1990 2.38677277652844 1991 2.40384615384615 1992 2.44635267888246 1993 2.50178548479862 1994 2.558678023155 1995 2.61039412918327 1996 2.65345562747324 1997 2.69470103537853 1998 2.73279169242896 1999 2.76038772395068 2000 2.78684284008545 2001 2.82156081007664 2002 2.86564753728562 2003 2.89726484533898 2004 2.89476596877589 2005 2.87906416748778 2006 2.86369703366102 2007 2.84020463586196 2008 2.81428359951971 2009 2.79669976713685 2010 2.83947394184643 2011 2.91728857349848 2012 2.9726930074252 2013 3.06433253936468 2014 3.20863736323026 2015 3.31083645167334 2016 3.34825598368866 2017 3.37894781294697 2018 3.45181513130114 2019 3.63271449180515 2020 3.92737312827289 2021 4.25095922223665 2022 4.55043800912088 2023 4.87757335852338