Year	% of total population
1960	1.804812079583646
1961	1.9307285633365823
1962	2.064847583812668
1963	2.2069632185631285
1964	2.357977548686448
1965	2.5178682749322236
1966	2.687994597980415
1967	2.8682807306211404
1968	3.05944389498338
1969	3.2633303506131894
1970	3.2938743528775025
1971	3.303097546442097
1972	3.3242378001027597
1973	3.3498715559587255
1974	3.3711779037221805
1975	3.388998290762077
1976	3.405938302366572
1977	3.4222842721383415
1978	3.4388602927775382
1979	3.46407115976
1980	3.52746223170596
1981	3.6232675821491678
1982	3.7135883928965105
1983	3.799469981302883
1984	3.8792527868488214
1985	3.9545738505736616
1986	4.027770217579389
1987	4.095600059495878
1988	4.161723316354467
1989	4.2264978277941925
1990	4.292254968689282
1991	4.359876920096842
1992	4.426340309305952
1993	4.4911004791769065
1994	4.5621368544162015
1995	4.663154009623695
1996	4.767277195041858
1997	4.863487504076782
1998	4.958709551808799
1999	5.042568601982702
2000	5.1334313904380044
2001	5.229955993389417
2002	5.325281688183522
2003	5.421689672778358
2004	5.529154776062728
2005	5.6409319091117665
2006	5.754853287745584
2007	5.869988205119412
2008	5.988227675366083
2009	6.108710794294759
2010	6.232069603702066
2011	6.358432421591016
2012	6.488664133401823
2013	6.621793597869454
2014	6.751878598013972
2015	6.876104066679624
2016	6.985571160168863
2017	7.08533151610689
2018	7.1933604389407835
2019	7.305604683499624
2020	7.4279763423667875
2021	7.5664648614122925
2022	7.728996984841243
2023	7.916667815918436