Year % of female population 1960 2.55258382738958 1961 2.53676793142002 1962 2.52506088100945 1963 2.51214928246654 1964 2.48921781604443 1965 2.45492586479343 1966 2.41072135602082 1967 2.35599071690009 1968 2.29688009370585 1969 2.24204438237983 1970 2.19382555949833 1971 2.15196440643325 1972 2.11689548693001 1973 2.08550331315007 1974 2.05303501567573 1975 2.01865161199588 1976 1.98319945377479 1977 1.94671199126292 1978 1.91128925744773 1979 1.8787090222462 1980 1.8485293693122 1981 1.82092346477679 1982 1.7964216663664 1983 1.77398602161561 1984 1.75098454598208 1985 1.72589048935801 1986 1.69930204502189 1987 1.67151939281774 1988 1.64331629694372 1989 1.6161473747898 1990 1.59070427815255 1991 1.56663669223637 1992 1.54404602720462 1993 1.51132726620911 1994 1.48797635415726 1995 1.48209464281224 1996 1.47548841642348 1997 1.47013952842904 1998 1.46674957125446 1999 1.4637269534955 2000 1.46080264105547 2001 1.45781168012621 2002 1.45349493368344 2003 1.44950296493664 2004 1.4491963534904 2005 1.45138458190257 2006 1.4573650199496 2007 1.46769553182876 2008 1.47892159679662 2009 1.48873995817365 2010 1.49442580493757 2011 1.49369291156625 2012 1.48278650721766 2013 1.45728999434643 2014 1.407314470711 2015 1.35997255465234 2016 1.33321612127541 2017 1.31491486435175 2018 1.30983363332754 2019 1.32575384237932 2020 1.3424483793429 2021 1.34791922041983 2022 1.35606759680886 2023 1.36911742922522