Year % of female population 1960 17.4289358825373 1961 17.5115063540044 1962 17.5821711402341 1963 17.6357884114495 1964 17.6687539800467 1965 17.6812492067692 1966 17.6699094151332 1967 17.6399336339485 1968 17.6035669828478 1969 17.5725996622466 1970 17.5531298480402 1971 17.5499893765197 1972 17.5687425375701 1973 17.60764862093 1974 17.6881838365307 1975 17.7948502974703 1976 17.8897512251167 1977 17.9614311718757 1978 18.0030059752923 1979 18.027577146635 1980 18.0525836433266 1981 18.0841798555334 1982 18.123911484479 1983 18.1694809673185 1984 18.2107517547144 1985 18.2474908693527 1986 18.2915200262567 1987 18.3416570185969 1988 18.3944906493002 1989 18.4388392698148 1990 18.4704515591297 1991 18.4923888605335 1992 18.5008601838285 1993 18.4951883838388 1994 18.4522027250682 1995 18.3538784020248 1996 18.2194342903237 1997 18.0809463217211 1998 17.9648800609261 1999 17.8705073412738 2000 17.7863786864633 2001 17.7142339239589 2002 17.6413859077844 2003 17.619429826603 2004 17.6591149775846 2005 17.7087875335192 2006 17.7719671183833 2007 17.842460176902 2008 17.8771898967263 2009 17.8694443990991 2010 17.8411853117308 2011 17.773984366055 2012 17.6664598991167 2013 17.5318387140282 2014 17.357748046829 2015 17.1390880443288 2016 16.8745175209805 2017 16.5706278555533 2018 16.2488956542138 2019 15.9292088009823 2020 15.6265021693064 2021 15.3561604963534 2022 15.1206885265916 2023 14.910386932482