Year % of female population 1960 18.1227556426548 1961 18.1095992585158 1962 18.1110944479556 1963 18.1368999223556 1964 18.1681616579994 1965 18.1910147268999 1966 18.2240989219731 1967 18.2428439237219 1968 18.2486800966593 1969 18.2901348967336 1970 18.3706167130003 1971 18.4770330731319 1972 18.6031831636749 1973 18.7209422256073 1974 18.838119652198 1975 18.9616311786788 1976 19.0677177196176 1977 19.1552709746119 1978 19.2291049043848 1979 19.2647870843906 1980 19.2592616169059 1981 19.2253776901974 1982 19.1650757057263 1983 19.0758900269291 1984 18.9811117168208 1985 18.8862321572192 1986 18.7232869881305 1987 18.4940486283879 1988 18.1348173087404 1989 17.8426766465598 1990 17.5758418361868 1991 17.1974536136474 1992 16.8618274331606 1993 16.6181973057066 1994 16.5957714905872 1995 16.3817808581126 1996 15.8169844821594 1997 15.2221246484659 1998 14.6366277394141 1999 14.1447527438415 2000 13.8436527839948 2001 13.6817989802271 2002 13.5572237466389 2003 13.4780075205084 2004 13.4259476979955 2005 13.3854479963818 2006 13.3609023564809 2007 13.3625198524321 2008 13.3886909372579 2009 13.4117965320127 2010 13.3969978167385 2011 13.3580673951791 2012 13.3113722154662 2013 13.2256304871845 2014 13.0907325017633 2015 12.9358288491672 2016 12.7665339731846 2017 12.5572296392902 2018 12.3103219164704 2019 12.0501956555648 2020 11.7945014535788 2021 11.5536010645518 2022 11.3359377774034 2023 11.1330414622805