Year % of total population 1960 49.2456586023293 1961 49.2035260363249 1962 49.182471098388 1963 49.1976592082616 1964 49.2312250835039 1965 49.2668343377782 1966 49.3050659683755 1967 49.3436358961824 1968 49.3786072690943 1969 49.4085269524974 1970 49.4359215289448 1971 49.4667692293082 1972 49.4983818012355 1973 49.5198574479297 1974 49.5376052193353 1975 49.562643815322 1976 49.5929639644243 1977 49.6232634285 1978 49.6477234064385 1979 49.6654376331069 1980 49.6772842234243 1981 49.6822563664729 1982 49.6819674529759 1983 49.6768537074148 1984 49.6638638023363 1985 49.6463628750723 1986 49.6284989432431 1987 49.6100527757416 1988 49.5927015117492 1989 49.578396989306 1990 49.5681882801823 1991 49.5893626404675 1992 49.6383347307712 1993 49.687183433164 1994 49.7377438737893 1995 49.7897357971465 1996 49.8436729771727 1997 49.8972773646261 1998 49.9486977771826 1999 49.9976356651206 2000 50.0467954569753 2001 50.0842261963058 2002 50.1077009851115 2003 50.1314454980118 2004 50.1553927606008 2005 50.1810741720507 2006 50.2088526977696 2007 50.2408341361138 2008 50.2767142960169 2009 50.3132354274035 2010 50.3467541474134 2011 50.3754365450819 2012 50.400195539071 2013 50.4246175110851 2014 50.45108283873 2015 50.4776310305122 2016 50.5047874235554 2017 50.5329637356043 2018 50.5598738903844 2019 50.5874892673568 2020 50.6196506779019 2021 50.6552776740587 2022 50.6912438850023 2023 50.7268808671977