Year	% of total population
1960	35.8752576318789
1961	36.0520591848668
1962	36.3107971532551
1963	36.6339499137352
1964	36.9418418923334
1965	37.1812625508962
1966	37.388881372761
1967	37.5751113176826
1968	37.7208610331865
1969	37.8221339217379
1970	37.8739464547331
1971	37.8646618157455
1972	37.773372492315
1973	37.5912374413491
1974	37.2958212356167
1975	36.8463716922241
1976	36.2113526889565
1977	35.3704151611383
1978	34.3323738766106
1979	33.1447139460185
1980	31.8657396641713
1981	30.5180284976672
1982	29.2370440255349
1983	28.1078227494658
1984	27.0555009523087
1985	26.0520288387739
1986	25.098314881178
1987	24.2401841402704
1988	23.5453865561267
1989	23.0283028125177
1990	22.6734643369331
1991	22.4250528196687
1992	22.2346256607628
1993	22.1003928259318
1994	22.0272941456562
1995	22.0064963786423
1996	22.0063365687828
1997	21.9275160347728
1998	21.734738971074
1999	21.4932311553438
2000	21.2141305378428
2001	20.9033122613648
2002	20.5680126259048
2003	20.1912330120936
2004	19.7634814837152
2005	19.3102212906609
2006	18.8732690799715
2007	18.490864194113
2008	18.1799909884257
2009	17.9393717288159
2010	17.738896723704
2011	17.5491397890051
2012	17.3500635318398
2013	17.1339255269108
2014	16.9083533694681
2015	16.6925987138857
2016	16.4823276717714
2017	16.2706387077738
2018	16.0993663272083
2019	15.9681007615606
2020	15.8605291460758
2021	15.7994060697618
2022	15.7206963384766
2023	15.5694308848966