Year % of female population 1960 2.50602635559076 1961 2.50198675178688 1962 2.49842315509146 1963 2.49553394880746 1964 2.49372037076346 1965 2.49273454356155 1966 2.49443263064481 1967 2.49951650499272 1968 2.50523945133692 1969 2.50737633341412 1970 2.50630829330293 1971 2.50314618453621 1972 2.49467819621274 1973 2.48847279270888 1974 2.48906526276606 1975 2.49649323638005 1976 2.51854283414226 1977 2.55510157104218 1978 2.59261703141611 1979 2.61087678528614 1980 2.60449243396868 1981 2.57688295126604 1982 2.52932588874091 1983 2.46588108498273 1984 2.41712954240291 1985 2.38794466971501 1986 2.35700203799678 1987 2.32493559646432 1988 2.28911958758011 1989 2.24522463128653 1990 2.19418974065726 1991 2.13799752301819 1992 2.0798408989911 1993 2.02953298744844 1994 1.99247167830902 1995 1.96447507741803 1996 1.94200461696386 1997 1.92585904625697 1998 1.91574567013202 1999 1.90857561469556 2000 1.90026850575723 2001 1.88610088527186 2002 1.85733545888729 2003 1.80221945171667 2004 1.71368231055761 2005 1.62323968344301 2006 1.55665181449822 2007 1.51262582599319 2008 1.50285327149074 2009 1.53469681786323 2010 1.58432553772148 2011 1.63516532319422 2012 1.69429177305578 2013 1.76147227421919 2014 1.83577226633112 2015 1.91581364690622 2016 1.99986883857415 2017 2.08527111403769 2018 2.1694169094906 2019 2.25042230097952 2020 2.32390904833372 2021 2.38691464742332 2022 2.44190262691252 2023 2.49154297425296