Year	% of total population
1960	3.96730162591876
1961	3.88327316243104
1962	3.8257785950293
1963	3.75631925540636
1964	3.68532465802531
1965	3.64230613809451
1966	3.63025627344913
1967	3.6423557122629
1968	3.66465674222665
1969	3.68748973605464
1970	3.71252134181128
1971	3.74341594438813
1972	3.77779805937066
1973	3.8219436855409
1974	3.8846675670278
1975	3.95420515282125
1976	4.018994580722
1977	4.08829139420709
1978	4.17919841018313
1979	4.28698117306371
1980	4.38954159368713
1981	4.48055790999121
1982	4.56259995963396
1983	4.64037271066038
1984	4.72333377020572
1985	4.81592531043389
1986	4.90817797913175
1987	4.9904582259021
1988	5.07802489980995
1989	5.18555210077259
1990	5.29592201533469
1991	5.39704737448461
1992	5.51404922486478
1993	5.66122075324302
1994	5.8167887921069
1995	5.98053227064555
1996	6.14678605221229
1997	6.31515927908334
1998	6.51267036416146
1999	6.72078988993725
2000	6.92062921691781
2001	7.1210751843817
2002	7.31742537683695
2003	7.50238774524324
2004	7.66634719129556
2005	7.82541745455974
2006	7.99680158939711
2007	8.15896421485941
2008	8.30353186248458
2009	8.45028202899818
2010	8.6165491604008
2011	8.81614803226073
2012	9.04930343173355
2013	9.32037728652277
2014	9.63318544271975
2015	10.0200536738185
2016	10.456798743801
2017	10.9463556609958
2018	11.4800533153961
2019	12.0221158122819
2020	12.5982619560395
2021	13.149753271767
2022	13.7223354484422
2023	14.2666115310985