Year	% of total population
1960	48.7832800496476
1961	49.1259489007104
1962	49.4400960928445
1963	49.6984057914274
1964	49.8791391303997
1965	50.1984957003969
1966	50.6587916855371
1967	51.0405675170482
1968	51.332677556593
1969	51.5490168033102
1970	51.7142181649011
1971	51.8918945495157
1972	52.0454779221048
1973	52.1215510009283
1974	52.1703905464339
1975	52.2164904635861
1976	52.2627495095115
1977	52.2369211708043
1978	52.1289984379705
1979	51.9948912377865
1980	51.8014796266008
1981	51.5701840621348
1982	51.3335446114293
1983	51.0667017424234
1984	50.7967077150025
1985	50.5518512827444
1986	50.3330050655776
1987	50.1319252242633
1988	49.9110601038656
1989	49.6572821370636
1990	49.360422129619
1991	49.0549146068906
1992	48.7396556977867
1993	48.3955626672044
1994	48.0231219075063
1995	47.6531825477738
1996	47.3035166018476
1997	46.9514826825755
1998	46.6131967353406
1999	46.2469692688458
2000	45.8488676407964
2001	45.4422874394423
2002	45.0561210329922
2003	44.7068563424928
2004	44.3802606450548
2005	44.1092126470405
2006	43.896680357252
2007	43.7406007948593
2008	43.6097290128464
2009	43.4680130430136
2010	43.2901108872438
2011	43.0468089893164
2012	42.751600247785
2013	42.4012903269593
2014	41.9992785150445
2015	41.5687582690142
2016	41.1056031913363
2017	40.6038732383216
2018	40.0768465685473
2019	39.5346570117239
2020	38.9730143512322
2021	38.3951556527578
2022	37.8114338355215
2023	37.2204350311226