Year	% of total population
1960	40.5772163521327
1961	40.5937916978003
1962	40.6801023377733
1963	40.8402186135172
1964	41.138745097883
1965	41.4477647476473
1966	41.6621033616978
1967	41.8633045051365
1968	42.0518153733215
1969	42.2388575748714
1970	42.4076235844909
1971	42.5611890323895
1972	42.7101645365494
1973	42.8531803623814
1974	43.0005109811761
1975	43.2379425501718
1976	43.5491449864313
1977	43.860754983338
1978	44.1759573696297
1979	44.4718702322738
1980	44.7337681124167
1981	44.9350401318798
1982	45.0630676608375
1983	45.221808495885
1984	45.2504008381957
1985	45.0946958408036
1986	44.9381575637723
1987	44.7521948838521
1988	44.5159919151973
1989	44.235404370713
1990	44.0370669635958
1991	43.8371976998152
1992	43.5722444254931
1993	43.293945597991
1994	43.0096496913816
1995	42.7513813805123
1996	42.5623756077962
1997	42.434943146058
1998	42.3348979974989
1999	42.2902037929659
2000	42.3204042243364
2001	42.3631927103413
2002	42.4326835314454
2003	42.5347691255513
2004	42.6663034899077
2005	42.8234023753964
2006	42.9973169508453
2007	43.1705209882181
2008	43.2387194386725
2009	43.2570977362608
2010	43.280063264374
2011	42.8951177182256
2012	42.6183655276672
2013	42.7190423083982
2014	42.7285448194649
2015	42.6323339033274
2016	42.480494719882
2017	42.3206204521465
2018	42.1091911037591
2019	41.831496629383
2020	41.456589074835
2021	41.0124993850386
2022	40.5225300183058
2023	40.0067068059962