Year % of female population 1960 0.610795736347327 1961 0.561442461716233 1962 0.523414552671848 1963 0.497942532157958 1964 0.48583586508266 1965 0.488876802219803 1966 0.503264289167379 1967 0.523293309778093 1968 0.545165641717863 1969 0.567710248308703 1970 0.571411391187224 1971 0.549033509266958 1972 0.523246937824338 1973 0.503478825660832 1974 0.488676890980541 1975 0.463806384400381 1976 0.429813589126287 1977 0.408856343596243 1978 0.406172587883312 1979 0.419966616083875 1980 0.438949684455962 1981 0.451721062330071 1982 0.461406194219384 1983 0.47134853254044 1984 0.480828357443922 1985 0.489411367328353 1986 0.498287392352531 1987 0.510142887282887 1988 0.525972276991885 1989 0.545124229108446 1990 0.561717741494344 1991 0.574877106404545 1992 0.590888857986814 1993 0.609821101704027 1994 0.629035061138441 1995 0.645134448375055 1996 0.656529415059616 1997 0.672540424513295 1998 0.699473527939059 1999 0.734767750257004 2000 0.756802011292907 2001 0.756855877969618 2002 0.756621784418385 2003 0.763630704954884 2004 0.775489652917944 2005 0.792937271828959 2006 0.817613834859483 2007 0.843299116875771 2008 0.861522048903694 2009 0.882476802216129 2010 0.904909175139673 2011 0.918409551476131 2012 0.932811187013155 2013 0.957006982555172 2014 0.992351820361306 2015 1.0016647535361 2016 0.98251353464643 2017 0.967628348261746 2018 0.956530758765157 2019 0.949041056363942 2020 0.944768917238568 2021 0.915264498166478 2022 0.890565041525952 2023 0.897673971680404