Year % of female population 1960 0.490303819081509 1961 0.465310711624668 1962 0.44150348208922 1963 0.41908797660701 1964 0.398198508601383 1965 0.37859589933415 1966 0.360275916856795 1967 0.343240984978868 1968 0.327359496994506 1969 0.312561397108592 1970 0.298398384428252 1971 0.285260333196304 1972 0.273567272456778 1973 0.26262716899101 1974 0.252150566058251 1975 0.241909903935033 1976 0.232679612418519 1977 0.226469107912007 1978 0.223873390547389 1979 0.222854444189884 1980 0.221781092423904 1981 0.223362726226445 1982 0.226646582935966 1983 0.228234388322092 1984 0.2281978276694 1985 0.227592713756395 1986 0.227563409971929 1987 0.228901433844954 1988 0.232186224075251 1989 0.237034960887285 1990 0.242528145960927 1991 0.248478545161431 1992 0.255786482165715 1993 0.264210810641273 1994 0.272206869033108 1995 0.27944696332887 1996 0.28658796657721 1997 0.294492831059566 1998 0.303629931575965 1999 0.313490293592963 2000 0.323255312468566 2001 0.332789948275752 2002 0.342039539327585 2003 0.350874913399106 2004 0.358798228871518 2005 0.365745776544389 2006 0.372477992010267 2007 0.379561930873349 2008 0.388035175306692 2009 0.39813814439979 2010 0.420579640718563 2011 0.459075190319112 2012 0.500356296316219 2013 0.539128923962219 2014 0.575884568379699 2015 0.609756252695804 2016 0.640001857794344 2017 0.666605021916169 2018 0.690316644530882 2019 0.702251626672843 2020 0.704100067307555 2021 0.700203893677605 2022 0.685684128896 2023 0.669473734273832