Year	% of total population
1960	38.3438377074204
1961	38.601554225327
1962	38.8069408074588
1963	38.9703708249418
1964	39.1086559364209
1965	39.229036902646
1966	39.3478874323388
1967	39.4530938123752
1968	39.5235671876893
1969	39.5361370687312
1970	39.6433655908165
1971	39.8566401105426
1972	40.0393824566048
1973	40.1692865779927
1974	40.2135677914215
1975	40.1645674796212
1976	39.9938154443283
1977	39.7470190869112
1978	39.4710936101665
1979	39.1364262746899
1980	38.7462230566828
1981	38.3126370828438
1982	37.8345298650365
1983	37.3095005564514
1984	36.7290891170588
1985	36.0621657837723
1986	35.3698163971081
1987	34.7197172029833
1988	34.0890048030966
1989	33.4518195967232
1990	32.8388730932395
1991	32.3152863876117
1992	31.8765183544729
1993	31.4966820769255
1994	31.1642186987873
1995	30.8563802885314
1996	30.5699558029458
1997	30.406724850183
1998	30.3150087424091
1999	30.1810536206118
2000	30.0268126768892
2001	29.8048777249968
2002	29.4821797884969
2003	29.0948060055095
2004	28.6730120951437
2005	28.2148174303762
2006	27.6809650110225
2007	27.1373116731564
2008	26.6589351441165
2009	26.2039525014933
2010	25.7699582865547
2011	25.3817542766055
2012	25.0353387823555
2013	24.7186539529549
2014	24.4182216073092
2015	24.1082280448854
2016	23.7896369131006
2017	23.4919473814703
2018	23.219250210615
2019	22.9733612732765
2020	22.7323037817341
2021	22.4824530924253
2022	22.2136192212119
2023	21.9377045711302