Year	% of total population
1960	2.9153403025552747
1961	3.1435173264013025
1962	3.389272579178059
1963	3.661470410892874
1964	3.9987986780942792
1965	4.3654716316787425
1966	4.765729230638911
1967	5.202640768894786
1968	5.680222715678875
1969	6.202922957330921
1970	6.481651672909945
1971	6.732601213795072
1972	6.990567870896973
1973	7.253127841404219
1974	7.522575515166094
1975	7.7980649527127905
1976	8.081191069029654
1977	8.37193873378363
1978	8.674257213631824
1979	8.988681294659079
1980	9.315335643879017
1981	9.380326956542971
1982	9.405255583076034
1983	9.429397542866317
1984	9.468390609721963
1985	9.513435307739579
1986	9.559064787278766
1987	9.61377328427659
1988	9.684021482453826
1989	9.763958738665982
1990	9.85419574128386
1991	9.952482505476198
1992	10.058472912388968
1993	10.167167679230731
1994	10.275168817976791
1995	10.382392719597288
1996	10.487969077576672
1997	10.584577773553852
1998	10.680143783415827
1999	10.772927558802724
2000	10.851119628726165
2001	11.001824574733584
2002	11.1922163578598
2003	11.382192961728176
2004	11.565770233213325
2005	11.73504760537732
2006	11.89051525167925
2007	12.038801900295217
2008	12.185078525843762
2009	12.333528081022447
2010	12.491794207199694
2011	12.667303807549994
2012	12.854994669934019
2013	13.049413402423477
2014	13.249964591604426
2015	13.461035448168815
2016	13.681558318966974
2017	13.910391307600264
2018	14.150365221410558
2019	14.399076803066645
2020	14.656460116818115
2021	14.923095291587765
2022	15.195515962767903
2023	15.465681452319979