Year % of female population 1960 1.69179509805413 1961 1.698878266789 1962 1.70338372930166 1963 1.70196671709531 1964 1.69549276962287 1965 1.68192067913516 1966 1.66746377467265 1967 1.64857359252714 1968 1.62595599046172 1969 1.61151567289867 1970 1.59785841760857 1971 1.5847026489679 1972 1.58304667456656 1973 1.59447369911104 1974 1.61310101111446 1975 1.64718792866941 1976 1.69674700097266 1977 1.75166557945055 1978 1.80706232716443 1979 1.86701119359519 1980 1.93640978018847 1981 2.00244123155923 1982 2.05750517000661 1983 2.09503058744658 1984 2.10959877898346 1985 2.13076778596323 1986 2.1647186282476 1987 2.20875197209998 1988 2.27922875938491 1989 2.357020133952 1990 2.42265661074342 1991 2.48473923552788 1992 2.53732869707507 1993 2.56975936593537 1994 2.5880265532748 1995 2.58020519501669 1996 2.54672208615766 1997 2.52275945781914 1998 2.53431466066892 1999 2.57315540661839 2000 2.61989694807769 2001 2.66331905676168 2002 2.67651807995303 2003 2.64407175376474 2004 2.59025776883956 2005 2.55022589637605 2006 2.52691358968966 2007 2.53306582738259 2008 2.57268789134177 2009 2.61804757689338 2010 2.61378450111135 2011 2.54716981132075 2012 2.53172825681224 2013 2.56908866534535 2014 2.61342978691505 2015 2.67258067547503 2016 2.70654599903943 2017 2.69457408193089 2018 2.69339297679379 2019 2.73715219094918 2020 2.81594763127451 2021 2.87807381830059 2022 2.9263370332997 2023 2.97487880123402