Year	% of total population
1960	7.08500615321278
1961	7.22352986543387
1962	7.35828076744214
1963	7.48571617391722
1964	7.61818551236213
1965	7.77034996829054
1966	7.93090049491692
1967	8.11037899244576
1968	8.32056040533806
1969	8.53419032315658
1970	8.73994179078925
1971	8.94163421654781
1972	9.13998525553116
1973	9.32104758802377
1974	9.46934753108382
1975	9.5817207362516
1976	9.63757393004265
1977	9.65645868756314
1978	9.65228504289752
1979	9.62458184745129
1980	9.58040930851622
1981	9.53888246879985
1982	9.4634916102023
1983	9.41479092176408
1984	9.46267690689597
1985	9.57356763840254
1986	9.72318275221072
1987	9.89796406780997
1988	10.097952510748
1989	10.3146082629054
1990	10.5441697466964
1991	10.7453966221779
1992	10.8945236292939
1993	11.0591445775587
1994	11.2701188441554
1995	11.5092765848236
1996	11.742704448061
1997	11.9633215332329
1998	12.1906072245259
1999	12.4285795458133
2000	12.6961522902021
2001	12.998459535772
2002	13.2994068423777
2003	13.586487728516
2004	13.8509559110417
2005	14.0666442390202
2006	14.2178636786459
2007	14.4211938914922
2008	14.912500317488
2009	15.5791817087846
2010	16.2415971152583
2011	16.8892582353372
2012	17.4634281367831
2013	17.9257185303697
2014	18.2894268223573
2015	18.5559547810508
2016	18.6958659839001
2017	18.7569473844466
2018	18.7946768215531
2019	18.8251599125953
2020	18.8412715044687
2021	18.8667066604904
2022	19.1282913858605
2023	19.577265918408