Year % of female population 1960 18.804485082688 1961 18.8489655784769 1962 18.8437724982001 1963 18.7930744662969 1964 18.707663790871 1965 18.5793871866295 1966 18.4287062290759 1967 18.3438525624842 1968 18.2697653730679 1969 18.0719971889351 1970 17.7560975609756 1971 17.3358283141337 1972 16.8210213872367 1973 16.2991903063247 1974 15.8991338082338 1975 15.6060356652949 1976 15.3431319572031 1977 15.091272684497 1978 14.8670495639226 1979 14.7073462601531 1980 14.5869168346296 1981 14.4695582633584 1982 14.3710437639748 1983 14.3279141875471 1984 14.3427627589956 1985 14.3988563557819 1986 14.4550701085485 1987 14.4274682388109 1988 14.2888124670818 1989 14.0670171503822 1990 13.7991893694526 1991 13.5544266459093 1992 13.3759460012272 1993 13.3033051436042 1994 13.3643325481559 1995 13.5341177428548 1996 13.7020965234093 1997 13.7487355856767 1998 13.6736517626741 1999 13.5220313964853 2000 13.3481965913595 2001 13.2319204450352 2002 13.2044820668396 2003 13.2573251877505 2004 13.3303037920832 2005 13.3471114101701 2006 13.3372851215175 2007 13.2510530669684 2008 13.0630119365151 2009 12.8227826643814 2010 12.6553312012905 2011 12.6069493741827 2012 12.5345278088839 2013 12.4135223065704 2014 12.3549916602635 2015 12.3122897363129 2016 12.1841656699973 2017 11.9653042945364 2018 11.6908732293348 2019 11.449019478251 2020 11.20735870884 2021 10.9766226494331 2022 10.8018033864413 2023 10.6599823710886