Year	% of total population
1960	40.6362507335016
1961	40.8453309928207
1962	41.1319887045016
1963	41.4667095265662
1964	41.8552548389137
1965	42.2785238475981
1966	42.6831914227776
1967	43.0227000860135
1968	43.295511007547
1969	43.5016797480374
1970	43.6522142902536
1971	43.7790627228481
1972	43.8765287850225
1973	43.9252970156648
1974	43.929108164609
1975	43.8817534284884
1976	43.7892970593595
1977	43.6758714722156
1978	43.5596317252717
1979	43.3826754235105
1980	43.0467682865426
1981	42.6827723754596
1982	42.5058128825551
1983	42.553717830665
1984	42.7869871566028
1985	42.9908767468567
1986	43.112243855935
1987	43.2410972420212
1988	43.3824983139886
1989	43.5591377665734
1990	43.7364804990262
1991	43.8964491071572
1992	44.2035482366749
1993	44.4450198836504
1994	44.4846724350874
1995	44.4294376494939
1996	44.2466767150648
1997	44.0034853114532
1998	43.7004501746165
1999	43.3631222108938
2000	42.9197916263786
2001	42.4397620624241
2002	42.1122220380781
2003	41.831350726083
2004	41.4773535818807
2005	41.0949459930223
2006	40.6989635021842
2007	40.3053248668587
2008	39.9397276815596
2009	39.5830447266458
2010	39.2414350322717
2011	38.9610889956613
2012	38.7775190126104
2013	38.6608103879211
2014	38.5438521963052
2015	38.4262792114898
2016	38.3076030833406
2017	38.1180310135904
2018	37.8555058152239
2019	37.5776967797188
2020	37.2723784741093
2021	36.9401005457096
2022	36.5655427870757
2023	36.1441041447555