Year % of female population 1960 18.1731638821457 1961 18.1467536045551 1962 18.1159741295295 1963 18.1134581601611 1964 18.1342306973266 1965 18.1477602320335 1966 18.1521760353008 1967 18.1695929692975 1968 18.1992020151874 1969 18.2246409135516 1970 18.2644213295488 1971 18.3349034385304 1972 18.399659083459 1973 18.4073086198911 1974 18.3568338157936 1975 18.2128809852845 1976 18.0109202053473 1977 17.8457570136796 1978 17.7521304814041 1979 17.7087043480643 1980 17.6558238541875 1981 17.5665546652882 1982 17.4402691810318 1983 17.286646739462 1984 17.1061993074989 1985 16.9024477419206 1986 16.6795678659173 1987 16.4336733579433 1988 16.2154660745549 1989 16.0222094180504 1990 15.8150776509308 1991 15.6109876792567 1992 15.3651075587132 1993 15.1212772490021 1994 14.9356239239464 1995 14.7336088255913 1996 14.4768332156579 1997 14.2094748077397 1998 13.9944073213248 1999 13.7919490413587 2000 13.6771421866821 2001 13.6398032538782 2002 13.4550237854981 2003 13.1084789830998 2004 12.7691764130346 2005 12.4607558536341 2006 12.1868423460518 2007 11.9880616813132 2008 11.8316891409056 2009 11.7813163283434 2010 11.6411390862564 2011 11.3844773273259 2012 11.2039728682171 2013 11.0221892117723 2014 10.7801431557142 2015 10.548853485588 2016 10.3790969516388 2017 10.2353080720066 2018 10.1056053465544 2019 9.99240602455385 2020 9.88616368010917 2021 9.7842903633098 2022 9.69935008894447 2023 9.63921616506929