Year % of total population 1960 52.620096497784 1961 52.5888078802451 1962 52.5580489727696 1963 52.5292320987371 1964 52.4984051852456 1965 52.4659891657795 1966 52.5827148292951 1967 52.839956284153 1968 53.0891692465829 1969 53.3307439525793 1970 53.447423207857 1971 53.4525946425437 1972 53.4639769760137 1973 53.4695774551952 1974 53.4708737175729 1975 53.4700582658662 1976 53.4628550330231 1977 53.449887537737 1978 53.4345823983253 1979 53.427306590981 1980 53.4004438145509 1981 53.3499051408433 1982 53.3017290036015 1983 53.2637290177441 1984 53.2408377921603 1985 53.2232962536808 1986 53.2100321477398 1987 53.1935968333172 1988 53.1743869284802 1989 53.1673877844767 1990 53.1690195703122 1991 53.1731711418696 1992 53.1875652755468 1993 53.219193483934 1994 53.2536880894085 1995 53.2834489211666 1996 53.3216123758525 1997 53.3623906042027 1998 53.3966521372033 1999 53.4312541970067 2000 53.4755456520863 2001 53.525447456509 2002 53.564994750227 2003 53.5411821072346 2004 53.463947092653 2005 53.3911090174599 2006 53.3260529651867 2007 53.2538839412564 2008 53.1753760215357 2009 53.1002801411081 2010 53.0272508744847 2011 52.9568287305366 2012 52.8918166438682 2013 52.8338575861795 2014 52.8244001764596 2015 52.8568875340349 2016 52.8839784572712 2017 52.9022773668443 2018 52.9152180684326 2019 52.9345543969189 2020 52.9608233012349 2021 52.9829057099825 2022 52.9962864395622 2023 53.0044132927713