Year	% of total population
1960	7.008489592024978
1961	7.229079962914081
1962	7.4506088226792375
1963	7.678663401613998
1964	7.901240571998981
1965	8.129065707545287
1966	8.342942845922874
1967	8.555314904238214
1968	8.77388897188421
1969	9.000211398956083
1970	9.234466227958837
1971	9.473504255763338
1972	9.718123761868172
1973	9.964304588023667
1974	10.199779277691183
1975	10.440410735696267
1976	10.636474259918272
1977	10.8369061617521
1978	11.04130639960363
1979	11.230695172289826
1980	11.430399386729258
1981	11.654474642691087
1982	11.853025188533962
1983	12.043303681460875
1984	12.203651935995943
1985	12.355678595429852
1986	12.519521128042367
1987	12.688829456862278
1988	12.867702399519954
1989	13.017883777311116
1990	13.182907137747659
1991	13.337913787527697
1992	13.450049541825656
1993	13.509291430690933
1994	13.54098184113709
1995	13.597991310908139
1996	13.694553449065436
1997	13.803781545291196
1998	13.905997674547875
1999	13.998599310463476
2000	14.113048670399216
2001	14.233851286242448
2002	14.341226621859285
2003	14.425496561806254
2004	14.477543360923967
2005	14.529176432578646
2006	14.584211628080297
2007	14.577849114936228
2008	14.698607543665489
2009	14.81083469717112
2010	14.82289190345913
2011	14.744809827575587
2012	14.716196916257863
2013	14.726118938400631
2014	14.771731973842181
2015	14.928810948260626
2016	15.11576523893598
2017	15.240083070185076
2018	15.366402034873367
2019	15.476579691664247
2020	15.589236990457124
2021	15.717750176016429
2022	15.943903622169142
2023	16.08646509551634