Year % of female population 1960 0.311352192843765 1961 0.308378404023152 1962 0.30134044542967 1963 0.295440811119318 1964 0.286452421874155 1965 0.273281041388518 1966 0.257674886763966 1967 0.240954490692161 1968 0.226070316310833 1969 0.212846895152525 1970 0.197730474115681 1971 0.180091821463901 1972 0.176821631179548 1973 0.185875082412563 1974 0.193623537216604 1975 0.203930153922282 1976 0.210736630255655 1977 0.210721988875014 1978 0.212058412453612 1979 0.217210247526402 1980 0.222401289282836 1981 0.231262155288486 1982 0.247788891099495 1983 0.267422016573128 1984 0.301979772512392 1985 0.346742577192168 1986 0.383033054333948 1987 0.40953704739233 1988 0.426016074313828 1989 0.421874603858733 1990 0.405482439834436 1991 0.398821971112092 1992 0.403202799596797 1993 0.42014651502222 1994 0.44584616933915 1995 0.473279077195777 1996 0.499854024930773 1997 0.515961331154154 1998 0.520653144206826 1999 0.526264987430912 2000 0.535823952979387 2001 0.552311691677262 2002 0.585484288244542 2003 0.63669576045203 2004 0.698629344745822 2005 0.767524704345382 2006 0.830055648906669 2007 0.857880716895669 2008 0.881432831452041 2009 0.921220399074421 2010 0.95896343884217 2011 1.00313457138144 2012 1.05730485326106 2013 1.12117078010666 2014 1.19275346011027 2015 1.27451869736025 2016 1.36958780741254 2017 1.47956658049612 2018 1.60182208114126 2019 1.73184773270013 2020 1.87222194266928 2021 2.0092576262275 2022 2.15433871340397 2023 2.31628399997383