Year % of female population 1960 13.332173094051 1961 13.5847709816222 1962 13.8042652297915 1963 13.9781405416923 1964 14.1220467202676 1965 14.2393011797719 1966 14.3359264303932 1967 14.4207551556994 1968 14.4854002975346 1969 14.5207448323957 1970 14.5361695782908 1971 14.5344103444662 1972 14.5185249056412 1973 14.4989850596206 1974 14.4840873623407 1975 14.4815923827578 1976 14.4970651246233 1977 14.5346245796021 1978 14.5928012642448 1979 14.6606831024527 1980 14.7248703899359 1981 14.7798451507499 1982 14.8295146509261 1983 14.8751308213749 1984 14.9267818876746 1985 14.9955447419952 1986 15.078255682776 1987 15.1690689736881 1988 15.2534897567645 1989 15.3111483718537 1990 15.3387820156418 1991 15.346430771383 1992 15.3536554487709 1993 15.3699148411423 1994 15.3826396345186 1995 15.3803688437636 1996 15.3550209997662 1997 15.2969058383496 1998 15.1958316212655 1999 15.0646833096845 2000 14.9764465380855 2001 14.9952750364121 2002 15.122318751988 2003 15.1896550822962 2004 15.0893509167683 2005 14.8976113513287 2006 14.6510229135941 2007 14.3449388732499 2008 13.993360287668 2009 13.6653362906462 2010 13.4064168351215 2011 13.2111456440019 2012 13.0907995219923 2013 13.0491699967058 2014 13.0393142546249 2015 13.0308029746104 2016 13.0288018526031 2017 13.0237071150309 2018 13.0053746345171 2019 12.9719951251714 2020 12.916466257791 2021 12.8413085609131 2022 12.7576596988832 2023 12.6646593237071