Year	% of total population
1960	58.4757656784069
1961	58.3918352256616
1962	58.4630117597943
1963	58.5999907087565
1964	58.7454760353394
1965	58.8898183538287
1966	59.0349789670222
1967	59.1445757601055
1968	59.2191609441161
1969	59.3433709482199
1970	59.5400665106148
1971	59.754876937403
1972	59.9957273121301
1973	60.3263630135562
1974	60.73180005863
1975	61.1198516004895
1976	61.4804694144022
1977	61.8836938036543
1978	62.2930299833026
1979	62.6747889724218
1980	63.050759135
1981	63.4089012528386
1982	63.8167309692217
1983	64.2934698044336
1984	64.7299612855826
1985	65.0661624783473
1986	65.3385729404319
1987	65.5903914909468
1988	65.7537299434681
1989	65.7810486973398
1990	65.6872477198295
1991	65.6412326634974
1992	65.6200138001805
1993	65.5237143587869
1994	65.4572542306927
1995	65.4410049503347
1996	65.4659467085249
1997	65.4857632131768
1998	65.4775377922145
1999	65.4889984814113
2000	65.5201353162142
2001	65.6176498301808
2002	65.8474741638362
2003	66.1164305645282
2004	66.3331911030224
2005	66.4797989537796
2006	66.5349434853485
2007	66.4987205951258
2008	66.4241098238983
2009	66.3219213428009
2010	66.1759547720455
2011	65.9680905235447
2012	65.7055230790667
2013	65.4885000912227
2014	65.414276521063
2015	65.4247275404687
2016	65.4267995778137
2017	65.4021494646881
2018	65.3902965489903
2019	65.4231247456662
2020	65.3534232993459
2021	65.181093927504
2022	64.98732905604
2023	64.7574611003482