Year % of total population 1960 59.136525115045 1961 59.9802105203427 1962 60.6931873520176 1963 61.2761255107273 1964 61.7363003650816 1965 62.0700071635505 1966 62.2728194226038 1967 62.3546591363272 1968 63.0899679981646 1969 64.6340428136247 1970 66.2713089744687 1971 67.723424079788 1972 68.9164650067475 1973 69.847648942579 1974 70.5131866601756 1975 70.9183391793064 1976 71.4078352006018 1977 71.8557821127492 1978 71.9480671086514 1979 71.7704247282326 1980 71.4586136659144 1981 70.7940973295279 1982 69.9119155101314 1983 69.1766091898529 1984 68.5555752158954 1985 68.0625702908187 1986 67.6918494107874 1987 67.6338544928673 1988 67.9796030306207 1989 68.5685576191394 1990 69.2850806896187 1991 70.0471299430612 1992 70.802832961052 1993 71.5345407964075 1994 72.2581862617131 1995 73.0047204413661 1996 73.5450017199595 1997 74.0907939697431 1998 74.9564723240664 1999 75.9487861909507 2000 76.9276742242697 2001 77.7975202633897 2002 78.5158027544996 2003 79.0921615978002 2004 79.5689146350961 2005 80.2228034216824 2006 81.626191874205 2007 83.4680715128365 2008 85.0026210225973 2009 85.9823795479944 2010 86.0792457141321 2011 85.6775435689293 2012 85.4095331783915 2013 85.240036460873 2014 85.1238545164038 2015 85.0081794130448 2016 84.8434329749975 2017 84.595677324366 2018 84.2509485190619 2019 83.8167769381774 2020 83.4050388654859 2021 83.0985522967638 2022 82.9388933748757 2023 82.9180357703703