Year	% of total population
1960	1.6277465470931
1961	1.72091495361976
1962	1.8402702896988
1963	1.98449262304569
1964	2.14439541606408
1965	2.31547990461403
1966	2.50240449412276
1967	2.70491582629696
1968	2.92616752454129
1969	3.1542930480566
1970	3.3203262828831
1971	3.43458657378692
1972	3.55846525909367
1973	3.70000318212403
1974	3.85798397968696
1975	4.03046014983706
1976	4.21455244212205
1977	4.39758726025951
1978	4.57514159579434
1979	4.73189838645865
1980	4.85673310065401
1981	4.95739422279406
1982	5.04953895132416
1983	5.14142967038409
1984	5.22569126577212
1985	5.29857749150268
1986	5.36218686436872
1987	5.42165239685421
1988	5.47982228110081
1989	5.53995179742903
1990	5.59226711322744
1991	5.62777589068839
1992	5.66290020757498
1993	5.70883387605346
1994	5.77152680869775
1995	5.85034743042574
1996	5.92696546526092
1997	5.99933601895098
1998	6.07997196280416
1999	6.17779258519169
2000	6.31768901859519
2001	6.50722004689012
2002	6.70582508976981
2003	6.86282825852227
2004	6.95744884877921
2005	6.99890382108979
2006	7.00076204987181
2007	6.98649259085203
2008	6.98117890989628
2009	7.02315483013964
2010	7.20136641380962
2011	7.52104009888392
2012	7.87187596665269
2013	8.19735364078616
2014	8.50861452958948
2015	8.92255564495547
2016	9.56496688599113
2017	10.3757888603097
2018	11.2629957693102
2019	12.195578041407
2020	13.154199090183
2021	14.1259881127284
2022	15.1173040562606
2023	16.1260377244305