Year	% of total population
1960	66.3065925337569
1961	66.1837403944986
1962	66.055295773369
1963	65.9191688838211
1964	65.7840819542947
1965	65.7179723502304
1966	65.48535679912
1967	64.9655435231351
1968	64.5364325653561
1969	64.4398070356117
1970	64.6358349487677
1971	65.0024623033089
1972	65.4826559215137
1973	66.0401336421588
1974	66.6051341217191
1975	67.1376110276959
1976	67.6293375663543
1977	68.0894374616304
1978	68.5296329838672
1979	68.9898072754965
1980	69.585240515571
1981	70.3453869550524
1982	70.7536659930566
1983	70.8522952117135
1984	71.1371368286293
1985	71.6203106632123
1986	71.9786424585293
1987	72.1381337252021
1988	72.319729329668
1989	72.5137252243965
1990	72.7270181726542
1991	72.9924505497479
1992	73.2497141410703
1993	73.4228142538373
1994	73.5217982535184
1995	73.5465416550793
1996	73.3738649206906
1997	73.023406821063
1998	72.6572627348106
1999	72.3113243469652
2000	72.0049926245319
2001	71.9979357121793
2002	72.259116283337
2003	72.5129384703853
2004	72.7946863200036
2005	73.1564475011118
2006	73.1957542024794
2007	72.9456238766255
2008	72.8091512721057
2009	72.7570004874614
2010	72.8556547515013
2011	72.7587062032806
2012	72.4118993135012
2013	72.1234753000357
2014	71.9567448322082
2015	71.9083426835133
2016	71.8956996436473
2017	72.1201573747401
2018	72.3943023589087
2019	72.4853621157146
2020	72.470398970399
2021	72.3897310018473
2022	72.2370465023051
2023	72.0320147837379