Year % of total population 1960 50.32360155654301 1961 50.31990110225019 1962 50.322505321987116 1963 50.33042464553728 1964 50.337758654350985 1965 50.34230116175263 1966 50.34726165319848 1967 50.352100709755454 1968 50.35727210699519 1969 50.36336886765284 1970 50.367096643238916 1971 50.36860373989711 1972 50.375675017746055 1973 50.38799418944705 1974 50.39948264564854 1975 50.40683046928562 1976 50.40834266204147 1977 50.40926344262232 1978 50.410204781047035 1979 50.40845636242554 1980 50.409986200193316 1981 50.41391317760719 1982 50.41333764943538 1983 50.408768853828256 1984 50.40279440446724 1985 50.39645587055083 1986 50.3951074932277 1987 50.39973575797708 1988 50.4041223276855 1989 50.40990737480176 1990 50.4177284598083 1991 50.42516667042502 1992 50.43014652225998 1993 50.43213330868595 1994 50.434560831982964 1995 50.43704092798205 1996 50.43934556082391 1997 50.44406752660271 1998 50.449371914302915 1999 50.453840593997576 2000 50.45979258265748 2001 50.46432323415382 2002 50.46636620196186 2003 50.46780868172223 2004 50.46848740663995 2005 50.467790409910435 2006 50.46571301176748 2007 50.46318633269656 2008 50.45925883550516 2009 50.454453302725014 2010 50.450832222388996 2011 50.44792533510709 2012 50.444998692659105 2013 50.4416585066125 2014 50.43863564853368 2015 50.433304990393516 2016 50.42358590934098 2017 50.41275907019467 2018 50.40213046064266 2019 50.39044178012519 2020 50.37639173251761 2021 50.35951553170912 2022 50.345566669035016 2023 50.33161995335615