Year	% of total population
1960	39.1268500159658
1961	39.018137570559006
1962	39.07680477897929
1963	39.48099716760927
1964	39.79923023208319
1965	39.86456116042791
1966	39.82458019734827
1967	39.60820686825852
1968	39.37637225405501
1969	39.20806388963173
1970	38.977795235795725
1971	38.7644502984353
1972	38.47594187543582
1973	38.1829202906899
1974	38.04707977756685
1975	37.94771785786814
1976	37.82251225026877
1977	37.39212941388526
1978	36.477205707876784
1979	35.53595180865377
1980	34.76097401507937
1981	34.071848787495625
1982	33.52735046298578
1983	32.918497112811615
1984	32.20608439129582
1985	31.547634203835504
1986	30.980553153053854
1987	30.549522982941195
1988	30.167693002192994
1989	29.83902806060118
1990	29.63773679837309
1991	29.43403194477755
1992	29.162684325394387
1993	28.872473668500934
1994	28.521013623296202
1995	28.097772719020714
1996	27.602813690402936
1997	27.007324337799524
1998	26.401919927391624
1999	25.8184439073801
2000	25.197107950567148
2001	24.50560701436271
2002	23.72726340355927
2003	22.966546950635745
2004	22.25105632815715
2005	21.523045530531846
2006	20.91894901277534
2007	20.506330006665262
2008	20.19331936866477
2009	19.95182782560459
2010	19.753185973637347
2011	19.592794220880545
2012	19.503459213240955
2013	19.458790453524642
2014	19.433276867346493
2015	19.392988740664027
2016	19.349901269799517
2017	19.342547042038884
2018	19.28929108951154
2019	19.162387685177453
2020	18.966682359986898
2021	18.700715828375447
2022	18.384371219352815
2023	18.029727593363347