Year % of total population 1960 47.4239669126823 1961 47.6455069689258 1962 47.854512921097 1963 48.0561384507773 1964 48.2549165491433 1965 48.4463631892453 1966 48.6278601934228 1967 48.8069759064228 1968 48.9818083084442 1969 49.149558305706 1970 49.3108806711423 1971 49.4678983741061 1972 49.6226808008488 1973 49.7704171735803 1974 49.9130654388981 1975 50.0572781794203 1976 50.2010333400185 1977 50.3426572763723 1978 50.4857110583983 1979 50.6408936958515 1980 50.7992184592482 1981 50.8572801804217 1982 50.8194615229321 1983 50.7795120528062 1984 50.7418720372703 1985 50.7114132688944 1986 50.6867885230007 1987 50.6638632906862 1988 50.6361754523716 1989 50.6054131054131 1990 50.5649541724822 1991 50.5914169178932 1992 50.6606489904789 1993 50.6983744202216 1994 50.7407147370638 1995 50.7838912537005 1996 50.8250940589728 1997 50.8671987118905 1998 50.9087723908378 1999 50.9399535067327 2000 50.9625438218833 2001 50.9859997712093 2002 51.0022036139268 2003 51.0238002616968 2004 51.0567632850242 2005 51.0919914675616 2006 51.1204645193714 2007 51.1450588320219 2008 51.1657420501106 2009 51.1826292789512 2010 51.2011929593442 2011 51.2184576322641 2012 51.2319236142594 2013 51.2359236854351 2014 51.2318542352589 2015 51.2180462425574 2016 51.2046657795646 2017 51.1857052174819 2018 51.1545293072824 2019 51.1189051122717 2020 51.0685067665724 2021 50.9996932868152 2022 50.9177665755955 2023 50.8331886825204