Year	% of total population
1960	37.5716242278559
1961	37.8193223733194
1962	38.1660697784345
1963	38.4016144109922
1964	38.5727978246367
1965	38.6163273291024
1966	38.4810519342206
1967	38.2257417299927
1968	37.8536042466898
1969	37.3510976998595
1970	36.7152450113299
1971	35.9652072729673
1972	35.1261819287105
1973	34.2283127420624
1974	33.2864214503907
1975	32.3041557647906
1976	31.3054262067688
1977	30.3441038519925
1978	29.4746403515412
1979	28.7149175299405
1980	28.0361392805665
1981	27.4379769400059
1982	26.9482322935981
1983	26.5572338886842
1984	26.237132135021
1985	25.9486799709977
1986	25.6434570577079
1987	25.2975016817834
1988	24.9161872998881
1989	24.5359581695709
1990	24.1642458704823
1991	23.8003176536804
1992	23.4919536916943
1993	23.2436957725325
1994	23.0284110556854
1995	22.8435762389751
1996	22.6736962672212
1997	22.4806201550388
1998	22.2599628662407
1999	22.0693531993663
2000	21.8822853731434
2001	21.6588507271744
2002	21.4580323131486
2003	21.285873965884
2004	21.0837787005829
2005	20.8271948997503
2006	20.5490976257786
2007	20.3205817774569
2008	20.2193037957273
2009	20.1874419037845
2010	20.0882017829646
2011	19.908598061974
2012	19.686094189846
2013	19.4275188268651
2014	19.1341763576018
2015	18.8035586497556
2016	18.4608593607011
2017	18.1437531117137
2018	17.8623718887262
2019	17.6049639606038
2020	17.3732512032719
2021	17.162192678152
2022	16.9249205531983
2023	16.6231376032596