Year	% of total population
1960	9.751184097619845
1961	10.004692649430309
1962	10.173280309916208
1963	10.286851032296589
1964	10.414428146977997
1965	10.553161079767696
1966	10.664886541474305
1967	10.769453978080884
1968	10.87749041681737
1969	10.985192894667973
1970	11.097082661710896
1971	11.214623212609254
1972	11.357309416110507
1973	11.504534335696787
1974	11.659843529034282
1975	11.756401847631919
1976	11.91898274317683
1977	12.0937371678802
1978	12.278833703663253
1979	12.467978161745972
1980	12.657769749902533
1981	12.800416130391987
1982	12.91797018432962
1983	13.062587540878875
1984	13.217249143490497
1985	13.377596931803918
1986	13.54108021896815
1987	13.703387611191225
1988	13.875393014601402
1989	14.056640511225536
1990	14.248269023255808
1991	14.475631702705462
1992	14.706905021877729
1993	14.952300429695939
1994	15.216689917794042
1995	15.500857957403584
1996	15.802894497720505
1997	16.121316091218272
1998	16.46246456853588
1999	16.830665065966137
2000	17.22830620309014
2001	17.506259384574438
2002	17.729011604043073
2003	17.962792405771733
2004	18.199474291272526
2005	18.447663595218355
2006	18.71269847066529
2007	18.99106283057678
2008	19.28701714463296
2009	19.58940805565398
2010	19.88526603699145
2011	20.15163669175653
2012	20.395387647282845
2013	20.639371194260768
2014	20.89318881771919
2015	21.156960708959517
2016	21.428793124116623
2017	21.706557747191223
2018	22.00223499625194
2019	22.284232492326186
2020	22.583689060308068
2021	22.904959534235456
2022	23.260756425114504
2023	23.58584711435491