Year	% of total population
1960	26.57702053215524
1961	26.75983244405283
1962	26.973627374295155
1963	27.276247722265623
1964	27.679556940975818
1965	28.21859412497173
1966	28.86907274557468
1967	29.499736323767372
1968	30.083131050794137
1969	30.821784931097817
1970	31.576312282189672
1971	32.39231880215036
1972	33.308734327258314
1973	34.18635252690227
1974	34.61419531856394
1975	34.215508491258014
1976	34.148780276640935
1977	34.69369452736055
1978	35.24367954384955
1979	35.8060461026584
1980	36.376474558666565
1981	36.77143322923267
1982	36.63434112834124
1983	36.55164033655809
1984	36.498282552865916
1985	36.48531722044736
1986	36.539182639547704
1987	36.636367325285434
1988	36.762279170546556
1989	36.903938030984506
1990	37.07301593534269
1991	37.277564234177206
1992	37.53910326396579
1993	37.726328254559235
1994	37.85922569377547
1995	37.96335711641208
1996	38.05680575559584
1997	38.12298712322721
1998	38.16715740523116
1999	38.188409513254676
2000	38.157637714193086
2001	38.10082910648379
2002	38.04834355458461
2003	38.06150808011725
2004	38.12688855756481
2005	38.21249070532869
2006	38.30057683271927
2007	38.3828020279686
2008	38.48555484531089
2009	38.60706510739198
2010	38.74840869754377
2011	38.965461716532985
2012	39.28516676043887
2013	39.664396959251896
2014	40.043516710120564
2015	40.375799521069354
2016	40.67077160399371
2017	40.9386716891741
2018	41.17389429727586
2019	41.33573096468562
2020	41.466372848771414
2021	41.38295635201925
2022	41.370138862738074
2023	41.093068000513426