Year	% of total population
1960	45.3580819105241
1961	45.9876716834874
1962	46.6099830732177
1963	47.2238867406988
1964	47.6720000640257
1965	48.0577083059679
1966	48.5383270563881
1967	49.0090690977643
1968	49.4562820193768
1969	49.8688084535248
1970	50.2127925422567
1971	50.3492573728894
1972	50.1240421543836
1973	49.6381111486415
1974	49.113935764952
1975	48.6401851826412
1976	48.2265376433034
1977	47.8647232604019
1978	47.5324760947217
1979	47.2174858519786
1980	46.9325687728837
1981	46.7197559493949
1982	46.6396418016077
1983	46.6232274961182
1984	46.5787366831336
1985	46.5126347640101
1986	46.4287213406684
1987	46.3051097175344
1988	46.1053603029323
1989	45.8138039489241
1990	45.4358041974723
1991	44.9827029720756
1992	44.4457114299691
1993	43.8485523964079
1994	43.2294155577038
1995	42.5700327927475
1996	41.8519001914776
1997	41.1053420067508
1998	40.3820258446657
1999	39.7023040297761
2000	39.0632052574878
2001	38.4641557837144
2002	37.8855464825538
2003	37.3339880073142
2004	36.8402197855397
2005	36.4163646901137
2006	36.0555938224823
2007	35.7243373969294
2008	35.4008080425642
2009	35.0966106831782
2010	34.8439723483379
2011	34.6716809502366
2012	34.5722020818456
2013	34.4897211806548
2014	34.3824510573575
2015	34.2362813352499
2016	34.045601212881
2017	33.8295640009326
2018	33.6186726936779
2019	33.4117493628739
2020	33.1708818953174
2021	32.9147708855933
2022	32.6030796533926
2023	32.2156426115811
