Year % of female population 1960 4.05127885317778 1961 4.10124983200402 1962 4.14374617344476 1963 4.18343899112706 1964 4.2287024085031 1965 4.27966626040563 1966 4.33744010997062 1967 4.40417623319459 1968 4.46995005591424 1969 4.51931578671478 1970 4.55033696250201 1971 4.56192235205984 1972 4.55100484505105 1973 4.52874111870275 1974 4.51229104160859 1975 4.51247527752321 1976 4.52748441841095 1977 4.55357495370162 1978 4.58676766826578 1979 4.6185246999239 1980 4.64328885607299 1981 4.66481479354553 1982 4.68539924070601 1983 4.69778003402529 1984 4.69130907272815 1985 4.66385106548157 1986 4.6147364088345 1987 4.54445506122623 1988 4.4639043866915 1989 4.38913247694426 1990 4.32848375068126 1991 4.28170729606786 1992 4.24692605121744 1993 4.22227243279652 1994 4.20786645415705 1995 4.20426444892042 1996 4.21418913397538 1997 4.23909741926588 1998 4.27745733336044 1999 4.32578407690524 2000 4.38174972384288 2001 4.44215956328706 2002 4.50507977383045 2003 4.56367107866593 2004 4.60448099307692 2005 4.63112808597491 2006 4.65298740588274 2007 4.66902869116103 2008 4.6831061553062 2009 4.70241316447797 2010 4.72064881289871 2011 4.73310092090397 2012 4.74720174338536 2013 4.75367472905741 2014 4.74742381787752 2015 4.7356718186371 2016 4.7206820494223 2017 4.70873666952559 2018 4.7110277578424 2019 4.72500846532977 2020 4.74115420180293 2021 4.75976062833695 2022 4.77541243900432 2023 4.78883081823231