Year % of total population 1960 48.3312265075576 1961 48.3802395762458 1962 48.4308709779532 1963 48.4749839983474 1964 48.5285444087325 1965 48.5690480268007 1966 48.6036103461601 1967 48.6469203018605 1968 48.6862385332048 1969 48.7200055834126 1970 48.7535714959601 1971 48.7922625744332 1972 48.7337795230492 1973 48.6603200380798 1974 48.691978649367 1975 48.7387283582344 1976 48.7799829230239 1977 48.8203221039316 1978 48.8617892216933 1979 48.8968412087 1980 48.9492755807434 1981 48.9976825661143 1982 49.0293813641135 1983 49.0645098091487 1984 49.0959608183603 1985 49.1223365125149 1986 49.1435042027441 1987 49.1645321843611 1988 49.167046040851 1989 49.165630291399 1990 49.1774944823774 1991 49.1910564542824 1992 49.2167188888899 1993 49.1740021097274 1994 49.1647226625767 1995 49.2161772982427 1996 49.2058604770216 1997 49.1971116140113 1998 49.2080810691693 1999 49.224423884094 2000 49.2334953427254 2001 49.2393974445882 2002 49.2515346059777 2003 49.2726990228319 2004 49.3013267615065 2005 49.3299520332868 2006 49.3573677331066 2007 49.3871882178217 2008 49.4168656150819 2009 49.4494088318254 2010 49.4820691812563 2011 49.5091813611911 2012 49.5350354995402 2013 49.5594643993538 2014 49.5811732789019 2015 49.5916528792182 2016 49.5983015092549 2017 49.6109081785253 2018 49.6247870095303 2019 49.6367024122771 2020 49.6439141433297 2021 49.6508664142661 2022 49.6597095203132 2023 49.6679359135688