Year % of total population 1960 45.960462354469 1961 45.9661684161595 1962 45.9760564711948 1963 45.9902172676601 1964 46.0081550834191 1965 46.0263702558332 1966 46.0475880462146 1967 46.0715597842562 1968 46.0954779205412 1969 46.119508900979 1970 46.1457665299611 1971 46.1755102247545 1972 46.2098878500531 1973 46.2509738925031 1974 46.2990676554723 1975 46.3453978014026 1976 46.389289550717 1977 46.433333683841 1978 46.4751859789725 1979 46.5142813031483 1980 46.5503358321717 1981 46.5813107564197 1982 46.6119984595696 1983 46.6411010186039 1984 46.6698920551218 1985 46.7046605257987 1986 46.7436038591084 1987 46.7876257011819 1988 46.8288614131116 1989 46.8660574792522 1990 46.9084520575983 1991 46.9620192000449 1992 47.0083441196271 1993 47.0505858327089 1994 47.1062956510721 1995 47.1562445432662 1996 47.2043555644842 1997 47.2571395667839 1998 47.3017782794392 1999 47.3350220193692 2000 47.3545438358932 2001 47.363421648989 2002 47.3689387849771 2003 47.3736328103055 2004 47.3666263486859 2005 47.3700336533728 2006 47.3952431147007 2007 47.4220132205509 2008 47.4518036041131 2009 47.4791251721567 2010 47.5012954755415 2011 47.5176669746763 2012 47.5275227382826 2013 47.5341647812254 2014 47.5446449967888 2015 47.5553092889826 2016 47.559798494507 2017 47.5606082805692 2018 47.5516393753081 2019 47.5337281889544 2020 47.5055975223407 2021 47.4680435053859 2022 47.6105989741509 2023 47.6951952760402