Year	% of total population
1960	61.65483640192
1961	61.4497773876084
1962	61.4227936788494
1963	61.5209816039266
1964	61.575177037332
1965	61.6828785715358
1966	61.9437760952105
1967	62.2924471248673
1968	62.6722022896386
1969	63.0405819484758
1970	63.3704683334708
1971	63.7127790933741
1972	63.9979382943551
1973	64.1145634203598
1974	64.0456140032814
1975	63.9242407578204
1976	63.8359248215104
1977	63.6941141897504
1978	63.5461594893278
1979	63.4324602626158
1980	63.4770661071039
1981	63.7195033439135
1982	63.985780915564
1983	64.2325486998215
1984	64.2949880558142
1985	64.1940721307449
1986	64.0845239151055
1987	64.0118750112955
1988	64.0493957022784
1989	64.23432568778
1990	64.545421715715
1991	64.8723970458464
1992	65.2185139551585
1993	65.6034981757786
1994	66.0389925771862
1995	66.5074079955005
1996	66.9620750205896
1997	67.4192189128651
1998	67.9154315411955
1999	68.452042334896
2000	69.0159995290782
2001	69.5990787982901
2002	70.1471720339648
2003	70.6387374681951
2004	71.0558210938727
2005	71.3967648216696
2006	71.6978175867507
2007	71.9423704006149
2008	72.1082652290368
2009	72.1197347931912
2010	72.0212310967411
2011	71.8781856299268
2012	71.6373989272332
2013	71.3045725749662
2014	70.911164707009
2015	70.4546889547861
2016	69.871419842766
2017	69.1985987835276
2018	68.5326310913554
2019	67.8961789713241
2020	67.3338580112946
2021	66.8904890978119
2022	67.2828851414196
2023	67.429263429953