Year % of female population 1960 19.4037948531128 1961 19.3263131260431 1962 19.2455515043269 1963 19.1596805523379 1964 19.0687125923028 1965 18.9754418041286 1966 18.885398439935 1967 18.8106160883183 1968 18.7587552335266 1969 18.7297121332888 1970 18.72914985313 1971 18.7544253114174 1972 18.7823166409412 1973 18.8047248467648 1974 18.8198372748899 1975 18.8122596929171 1976 18.775215152363 1977 18.7090373626229 1978 18.6052413764958 1979 18.4720762512231 1980 18.3262142351861 1981 18.1697381038566 1982 18.0117428217276 1983 17.8472239930551 1984 17.6660137022596 1985 17.4693661050036 1986 17.2562451045494 1987 17.0225073965202 1988 16.7805122266408 1989 16.5372372944111 1990 16.2888527649529 1991 16.0389282651319 1992 15.7823751341974 1993 15.5084907243848 1994 15.2141365958789 1995 14.9002335627103 1996 14.58236352828 1997 14.2614047046261 1998 13.9239551230744 1999 13.5908943086887 2000 13.2768423636796 2001 12.9759973696789 2002 12.6986961689458 2003 12.4499370658572 2004 12.2209677115303 2005 11.9964317425304 2006 11.7828877622968 2007 11.5969932276085 2008 11.4379044761026 2009 11.3059494308878 2010 11.1994848273335 2011 11.1070752887092 2012 11.0176926499031 2013 10.9276181901205 2014 10.8328311349852 2015 10.7301599225035 2016 10.617477128991 2017 10.4929269259947 2018 10.3560708940632 2019 10.2077129735946 2020 10.0506821952177 2021 9.88513371569336 2022 9.70883262096036 2023 9.52571131691865