Year % of female population 1960 19.7795079066879 1961 19.794066398644 1962 19.7996527286577 1963 19.7952115231315 1964 19.7797389081956 1965 19.7481342863848 1966 19.7077992753784 1967 19.6661860513473 1968 19.6083329159278 1969 19.5303137032155 1970 19.4463500320984 1971 19.3580768444415 1972 19.2742775313781 1973 19.2098158316806 1974 19.1634107361098 1975 19.1312071163182 1976 19.119182425132 1977 19.1388902841508 1978 19.2064974126276 1979 19.3223595515219 1980 19.4660281576476 1981 19.6176132420358 1982 19.7480289825394 1983 19.8235528542637 1984 19.8494933494383 1985 19.8290160465307 1986 19.7487234093102 1987 19.6457022434807 1988 19.5419217558163 1989 19.4270945694803 1990 19.3338054848695 1991 19.2894334958047 1992 19.279737420029 1993 19.3065972291492 1994 19.3715730956712 1995 19.4656670846592 1996 19.5964229409197 1997 19.7527231093135 1998 19.9014530238746 1999 20.0289710776825 2000 20.1242091637802 2001 20.1822546274391 2002 20.2219758325592 2003 20.255718152898 2004 20.2859217292988 2005 20.3088120143242 2006 20.3192023685245 2007 20.3186758683622 2008 20.3078716017697 2009 20.2831697541579 2010 20.2458886809855 2011 20.1988288930257 2012 20.1236361337846 2013 20.0372228459659 2014 19.9553247044692 2015 19.8656848242229 2016 19.7907762836227 2017 19.7522920129905 2018 19.7305908781987 2019 19.7107065553066 2020 19.6919825454663 2021 19.6546703133108 2022 19.5960290968508 2023 19.5181191318166