Year % of total population 1960 49.8187641001586 1961 49.8186008567879 1962 49.8167008460532 1963 49.8131067961165 1964 49.8134746972195 1965 49.8112802167847 1966 49.7931963559501 1967 49.7785612399725 1968 49.772711669791 1969 49.7599623237924 1970 49.7423330802937 1971 49.7320460886877 1972 49.7252130472888 1973 49.7086001521445 1974 49.6925010914894 1975 49.6726360248596 1976 49.650027295437 1977 49.6264122842358 1978 49.6004860541534 1979 49.5787389694138 1980 49.55712207424 1981 49.5292394487122 1982 49.504499589422 1983 49.486263046884 1984 49.4628928068093 1985 49.4458340567692 1986 49.4356873097012 1987 49.4410843374645 1988 49.4629842412189 1989 49.4618972840315 1990 49.444223879654 1991 49.4447059353535 1992 49.4568251396167 1993 49.4566961709927 1994 49.4508661923164 1995 49.4481609916012 1996 49.4479528746939 1997 49.4569877010433 1998 49.4722764028778 1999 49.4935392015763 2000 49.5267859250152 2001 49.5512976579397 2002 49.5580638096191 2003 49.5653718692 2004 49.5776713817568 2005 49.5970857901559 2006 49.6466811282433 2007 49.7483956627103 2008 49.8584506235932 2009 49.9279280062801 2010 49.9828109505187 2011 50.0667297727837 2012 50.1611856891017 2013 50.227962149859 2014 50.2805705729728 2015 50.3279929160929 2016 50.3638245499457 2017 50.3841670279562 2018 50.3911473706403 2019 50.4093746792192 2020 50.4312303769685 2021 50.4450935874578 2022 50.4588339403705 2023 50.4705390219131