Year	% of total population
1960	39.67669345571347
1961	39.491815399758245
1962	39.51905334124299
1963	39.91181902749822
1964	40.25979550441442
1965	40.39465227093961
1966	40.43173786692566
1967	40.295363140519484
1968	40.153532491590724
1969	40.07532373391905
1970	39.93773340849027
1971	39.7948842162059
1972	39.57837169751453
1973	39.349564387714466
1974	39.26453260579284
1975	39.198573423267774
1976	39.090152501364734
1977	38.654224539159706
1978	37.71122170128504
1979	36.71805058165544
1980	35.87196168602987
1981	35.10959639965173
1982	34.48326173955658
1983	33.77077192274055
1984	32.94672633077716
1985	32.172761315638795
1986	31.485430413503032
1987	30.93784826180763
1988	30.45181638819859
1989	30.039519176345337
1990	29.78443825462719
1991	29.54899121332331
1992	29.26153251034947
1993	28.969719794968075
1994	28.62437811497961
1995	28.214631814955283
1996	27.74704512511643
1997	27.198476929830168
1998	26.651516173356807
1999	26.136159367153308
2000	25.596283051836195
2001	25.001873488752462
2002	24.326173717278003
2003	23.653509746118097
2004	23.006542820769262
2005	22.339764053724405
2006	21.78759978220087
2007	21.410987710420915
2008	21.114707531559354
2009	20.874215063962605
2010	20.670855617456276
2011	20.500253010240222
2012	20.39041947955382
2013	20.319353418908157
2014	20.25957856979743
2015	20.17902689806039
2016	20.097692958542297
2017	20.057686776449213
2018	19.975324338811532
2019	19.823420392651293
2020	19.60892090068388
2021	19.327292671421677
2022	19.001508347290162
2023	18.64283046881551