Year % of female population 1960 2.2621801220488287 1961 2.259088014525538 1962 2.2283476845936137 1963 2.1881185400855068 1964 2.1630960883777623 1965 2.1596037062459597 1966 2.174447081115187 1967 2.206094907404347 1968 2.243539272842458 1969 2.271863545269619 1970 2.285791489137249 1971 2.2876811400872414 1972 2.2794482313379083 1973 2.266387064082897 1974 2.2550162953910653 1975 2.2482838168142134 1976 2.2449484190449134 1977 2.243714548160386 1978 2.243207727509244 1979 2.2413091278719004 1980 2.2367556101337533 1981 2.2309322293835634 1982 2.22482214686464 1983 2.219259788254419 1984 2.2161750941064415 1985 2.2162824178696092 1986 2.2190974739228557 1987 2.2245402715576255 1988 2.232407262650502 1989 2.242379982767363 1990 2.2544197016974663 1991 2.268723085125557 1992 2.284617471530611 1993 2.300333595149603 1994 2.3145913978295 1995 2.326991487505906 1996 2.3396755991295537 1997 2.354762264345538 1998 2.369948379171148 1999 2.380381752563396 2000 2.3849518921030404 2001 2.384265817763278 2002 2.3797584319578053 2003 2.3766876236747434 2004 2.381417926965142 2005 2.39668061770772 2006 2.4222108634620967 2007 2.4571268684964216 2008 2.497622037133091 2009 2.5598276941601075 2010 2.64566738284886 2011 2.738010928991032 2012 2.836564455485845 2013 2.942356101281786 2014 3.0380590234118054 2015 3.117809107526075 2016 3.1920758458464564 2017 3.259681733887644 2018 3.3205881913043704 2019 3.3751394719259102 2020 3.4231873086111118 2021 3.4622565603859226 2022 3.4977666603361244 2023 3.5417186860834913