Year % of female population 1960 2.88741238474502 1961 2.77861137058155 1962 2.61202488078477 1963 2.43096545050197 1964 2.29068772953665 1965 2.20842410607401 1966 2.17618333615323 1967 2.19368891691267 1968 2.24597003496484 1969 2.30879831886302 1970 2.37155080484992 1971 2.44016509614307 1972 2.51722842843542 1973 2.59388899665764 1974 2.6578314884398 1975 2.6900710098396 1976 2.69222556761848 1977 2.68379686699375 1978 2.67628332573241 1979 2.67618198037467 1980 2.67552747073342 1981 2.65236599860819 1982 2.61001431693166 1983 2.56543600458879 1984 2.51882452812263 1985 2.46920475816678 1986 2.41484697999335 1987 2.35502145371731 1988 2.29016592646451 1989 2.22328549539487 1990 2.16704332435044 1991 2.16090250173459 1992 2.19044438264517 1993 2.21810081253141 1994 2.25810313158474 1995 2.32431535942127 1996 2.41755859842143 1997 2.52100737311596 1998 2.60517051399799 1999 2.63357866308959 2000 2.5797587618095 2001 2.4497625494377 2002 2.28272464062579 2003 2.13712686360607 2004 2.15256465986833 2005 2.40719524463895 2006 2.72472651673899 2007 2.92791228742896 2008 2.97277912295391 2009 2.86142358183789 2010 2.67736304073293 2011 2.54082765546757 2012 2.47402547730576 2013 2.44241416035137 2014 2.42967523323814 2015 2.41279920927343 2016 2.40028997462722 2017 2.41043259587069 2018 2.43982711287395 2019 2.48635295055186 2020 2.54582644582692 2021 2.60989721840105 2022 2.67533394134072 2023 2.74395822272614