Year % of female population 1960 9.2239633164325 1961 8.69778551490017 1962 7.95384794752129 1963 7.07969989835908 1964 6.18380011794223 1965 5.48345822017379 1966 5.08840997628742 1967 5.02717539055788 1968 5.21859658849661 1969 5.67856364823397 1970 6.20460636830517 1971 6.62910029390037 1972 7.00461310300113 1973 7.35608759333638 1974 7.65763905788628 1975 7.93201994924553 1976 8.25611794761698 1977 8.56573678506498 1978 8.8441543588224 1979 9.08060250783113 1980 9.27389736139111 1981 9.42531263671506 1982 9.52710508305507 1983 9.56939434049753 1984 9.54739656866024 1985 9.54995521453901 1986 9.55694434609224 1987 9.48807276375785 1988 9.38019115186039 1989 9.2186903753965 1990 9.05910045975728 1991 8.97542468539297 1992 8.92547666346889 1993 8.8590377337897 1994 8.7980662606845 1995 8.73621052452825 1996 8.66498927370257 1997 8.63118224943169 1998 8.66189672221047 1999 8.76194855553493 2000 8.88116984940044 2001 8.99829928919403 2002 9.14259513293992 2003 9.31983931505283 2004 9.53274425676501 2005 9.80239920859687 2006 10.1326719731335 2007 10.4691805488946 2008 10.7424852348153 2009 10.9256138696873 2010 10.9965833814869 2011 10.9178742472169 2012 10.7111421110191 2013 10.4515189938754 2014 10.204905449573 2015 9.97569122627138 2016 9.72649434659327 2017 9.48636749861012 2018 9.30201605088402 2019 9.10205597696001 2020 8.87494879228887 2021 8.7028566320549 2022 8.56451839633661 2023 8.39751324746462