Year % of female population 1960 0.381477042227549 1961 0.393836186334439 1962 0.409404608726167 1963 0.424768354250725 1964 0.438550091845469 1965 0.446887713773425 1966 0.452437994450094 1967 0.456725466325689 1968 0.460611512186044 1969 0.463585843813981 1970 0.466978900233832 1971 0.468681784329336 1972 0.470462731560558 1973 0.476945759985703 1974 0.483341785777125 1975 0.486783241359004 1976 0.490386692590192 1977 0.494080430969682 1978 0.496483685439326 1979 0.499355353835481 1980 0.503969370405255 1981 0.509440921989318 1982 0.515714349535382 1983 0.522403758502209 1984 0.528474277111561 1985 0.534813644680709 1986 0.541449541112743 1987 0.546457681351528 1988 0.550589387929846 1989 0.55470441171987 1990 0.558715934158588 1991 0.564113827741443 1992 0.570976123830447 1993 0.578133246721611 1994 0.584244972053695 1995 0.59097497464659 1996 0.59628270887999 1997 0.595425844040683 1998 0.591386776963518 1999 0.590108292472595 2000 0.590596291854006 2001 0.591110857000291 2002 0.593105900420243 2003 0.601500418977005 2004 0.61518926374324 2005 0.629724279968514 2006 0.642485122108611 2007 0.654146784324871 2008 0.666052519712651 2009 0.677782221446422 2010 0.690523816898556 2011 0.70405923193152 2012 0.718609589526865 2013 0.734497414102105 2014 0.751875917335901 2015 0.770003380936658 2016 0.788544191715475 2017 0.808176779948422 2018 0.829111615084604 2019 0.85127251361342 2020 0.873360057810895 2021 0.89398150060988 2022 0.914212942626784 2023 0.937340920541257