Year	% of total population
1960	27.2680111826943
1961	26.9662223722052
1962	26.5386323981103
1963	26.05653142604
1964	25.4592558441656
1965	24.8177329546858
1966	24.342990396289
1967	23.9182743964449
1968	23.4609643811354
1969	23.0589823395179
1970	22.6967873298984
1971	22.3882452691313
1972	22.2147509577888
1973	22.1373371220974
1974	22.0434583818786
1975	21.929527036232
1976	21.8144258018679
1977	21.7398050682466
1978	21.6741210274911
1979	21.6052500894002
1980	21.4984229157478
1981	21.3150062020204
1982	21.1154454334464
1983	20.9388981583426
1984	20.7757379802049
1985	20.6284714763944
1986	20.4950860848394
1987	20.3400838078003
1988	20.143117584623
1989	19.8990345426484
1990	19.6123369074677
1991	19.3552779596797
1992	19.0725588709211
1993	18.7453524041698
1994	18.4478612227352
1995	18.1658815391718
1996	17.9226769030528
1997	17.6771074599396
1998	17.3034182179564
1999	16.8423056795353
2000	16.4539556412068
2001	16.188487360778
2002	15.9765574765078
2003	15.7682070901632
2004	15.5595144056425
2005	15.3363885631158
2006	15.0917378611089
2007	14.8674546355882
2008	14.6767219221437
2009	14.5062239249837
2010	14.3493675027341
2011	14.1969698271934
2012	14.0834116516438
2013	14.1179504790446
2014	14.2491940572325
2015	14.3107862548235
2016	14.2681423695446
2017	14.1753852707612
2018	14.0893078092576
2019	14.0633927147283
2020	14.1296665420631
2021	14.2685902670477
2022	14.4361893882812
2023	14.550746519498