Year % of total population 1960 50.777400238333 1961 50.793661719761 1962 50.8079289368174 1963 50.8209070594353 1964 50.8319607473936 1965 50.8409710280199 1966 50.8478923099393 1967 50.8552385054012 1968 50.8634244983061 1969 50.8682355255118 1970 50.8701644001798 1971 50.8711302875289 1972 50.8704258083378 1973 50.8680611049926 1974 50.8733955081304 1975 50.8954301117883 1976 50.9249786527896 1977 50.9544372408978 1978 50.9797968804596 1979 51.0000130125311 1980 51.0105658565654 1981 51.0107178764507 1982 51.0153080017932 1983 51.0234390887058 1984 51.0288744448782 1985 51.0352282462013 1986 51.0351039258601 1987 51.0331916084895 1988 51.0345856246947 1989 51.036543393347 1990 51.0326703752628 1991 51.0172516942753 1992 50.9934919290655 1993 50.9522720837945 1994 50.9124112607099 1995 50.8513735270394 1996 50.7998637853108 1997 50.7833306641193 1998 50.855816352406 1999 51.065637390053 2000 51.1875229848551 2001 51.1522071937958 2002 51.1041350006909 2003 51.0508443915142 2004 51.0001664772686 2005 50.968453229331 2006 50.9448132404058 2007 50.9209997512105 2008 50.8864091471795 2009 50.8547327269992 2010 50.8298845484377 2011 50.8085248334409 2012 50.7918597944534 2013 50.7746255195492 2014 50.7631735333278 2015 50.7552082241769 2016 50.7450330387869 2017 50.7331171971894 2018 50.7176289134358 2019 50.7016369528223 2020 50.6867802741834 2021 50.6716548187007 2022 50.6552060351267 2023 50.6382803920402