Year	% of total population
1960	9.089088333402305
1961	9.162433401112226
1962	9.221750528778013
1963	9.289757538335294
1964	9.350791544614225
1965	9.384439377313631
1966	9.408826885511287
1967	9.478643799030346
1968	9.538366908997189
1969	9.566886098837584
1970	9.631090790926795
1971	9.702930291055406
1972	9.798639864776337
1973	9.931666043486569
1974	10.08247104840021
1975	10.253972053744107
1976	10.457373818113744
1977	10.663695181307004
1978	10.839706572546788
1979	10.982718756872288
1980	11.09434195233161
1981	11.203045211403738
1982	11.3056142960403
1983	11.381993778880075
1984	11.500727365177545
1985	11.656199807026765
1986	11.77580270126438
1987	11.869856169263679
1988	12.025068320280216
1989	12.152748117525
1990	12.178003004211085
1991	12.232733451270219
1992	12.310805107504725
1993	12.351851551438063
1994	12.415181403271683
1995	12.481330484005575
1996	12.500016701885448
1997	12.480193856695449
1998	12.445180815064985
1999	12.39605901843758
2000	12.333980374832047
2001	12.324257507955615
2002	12.324030396571203
2003	12.324841135086963
2004	12.359802108432332
2005	12.422510751880596
2006	12.4945383102713
2007	12.591079758047384
2008	12.75957053076275
2009	12.94974288609212
2010	13.130774050530981
2011	13.38195958680343
2012	13.705270499822957
2013	14.023417713579951
2014	14.284085695661219
2015	14.496439545280005
2016	14.84583903011177
2017	15.239558605513837
2018	15.577422597115373
2019	15.97405500418377
2020	16.408566897133618
2021	16.869643770917293
2022	17.32806438249582
2023	17.797838211579254