Year	% of total population
1960	66.22349605399921
1961	65.50368599043861
1962	64.7797707482757
1963	64.04910674713447
1964	63.31039971290406
1965	62.539584684947535
1966	61.81764543916587
1967	61.1782963532541
1968	60.5180525173467
1969	59.85625715819752
1970	59.19295565008727
1971	58.554674214766884
1972	57.90527491835039
1973	57.25434081448257
1974	56.62250607101186
1975	55.99800192521557
1976	55.33596795518729
1977	54.722561924167046
1978	54.230498475883536
1979	53.750200123910936
1980	53.20692792870114
1981	52.65253666405914
1982	52.10918921243205
1983	51.57836435069893
1984	51.043927922310125
1985	50.538651636898116
1986	50.02889835427842
1987	49.57682339724997
1988	49.2148917772747
1989	48.87649303989349
1990	48.40173750868371
1991	48.06095484398826
1992	47.65251126061108
1993	47.22774437849309
1994	46.8143775439818
1995	46.46153145361947
1996	46.12808153896693
1997	45.78972855674166
1998	45.43205707609484
1999	45.06950461875628
2000	44.705118598864225
2001	44.34257168552415
2002	43.99903344831057
2003	43.661636474923036
2004	43.311185209483845
2005	42.9265842020473
2006	42.54748752891451
2007	42.21324263941892
2008	41.88041856623893
2009	41.53472059283682
2010	41.19557813007435
2011	40.97469784004903
2012	40.754228550262575
2013	40.43057613008552
2014	40.05027301526828
2015	39.643346220569875
2016	39.31180823682437
2017	39.008239027558574
2018	38.70553223875974
2019	38.40887506110499
2020	38.107679330843744
2021	37.79713880084082
2022	37.491002372709545
2023	37.192717401677044