Year	% of total population
1960	23.937938530992916
1961	24.436696860900298
1962	24.908403118121804
1963	25.350281829052737
1964	25.799875829422003
1965	26.03415989694964
1966	26.261060429048214
1967	26.502482026410124
1968	26.741749197697025
1969	26.974813323315708
1970	27.204048952347065
1971	27.45397610992289
1972	27.73822756831606
1973	28.05344555972942
1974	28.406440414864683
1975	28.7166567643925
1976	29.082944084783733
1977	29.453880358587377
1978	29.909260818541153
1979	30.44576183883438
1980	30.994301128230955
1981	31.549377192440186
1982	32.06433193684841
1983	32.539975953912325
1984	33.03276060281885
1985	33.527735720724586
1986	34.020691907680124
1987	34.50844618416157
1988	34.99374944667952
1989	35.4627442993139
1990	35.91872127431169
1991	36.37678622642189
1992	36.825465453380524
1993	37.27059782035288
1994	37.72020638505387
1995	38.16786272828646
1996	38.610952422179395
1997	39.061267261848954
1998	39.51824794315316
1999	39.975566502420264
2000	40.44082683794077
2001	40.956343920558844
2002	41.511399755015844
2003	42.071469767956714
2004	42.6405558343158
2005	43.21613186883333
2006	43.78311234656995
2007	44.338301271294135
2008	44.9092941606252
2009	45.47914045063262
2010	46.045961670822074
2011	46.5860608456389
2012	47.116945065323684
2013	47.655792188194766
2014	48.20225244224525
2015	48.75382901062574
2016	49.29799652324082
2017	49.836815914257684
2018	50.368516791661094
2019	50.89214453483328
2020	51.40340613247196
2021	51.905705095634474
2022	52.39117625927201
2023	52.882796182424364