Year	% of total population
1960	3.2508537363491086
1961	3.2684085026187955
1962	3.296795259180266
1963	3.33222653882033
1964	3.3695473037742363
1965	3.4087290857882047
1966	3.4508819309668026
1967	3.494217070024395
1968	3.536759068406091
1969	3.5765336242529777
1970	3.613394051368945
1971	3.659503781147885
1972	3.7168783443591016
1973	3.7755515300941926
1974	3.83531384032616
1975	3.8975919235966616
1976	3.960983936590936
1977	4.02286703426046
1978	4.081684892304269
1979	4.136318568899092
1980	4.180199673135311
1981	4.212293278532654
1982	4.2403989026865085
1983	4.268938876736624
1984	4.300839160969395
1985	4.33869475159864
1986	4.384884584673661
1987	4.43997350325237
1988	4.501557039980552
1989	4.568572244982671
1990	4.6379956486857115
1991	4.710245622390163
1992	4.787080918041472
1993	4.868975937580896
1994	4.958166538907575
1995	5.050342700925581
1996	5.143327236034112
1997	5.237714962834793
1998	5.332525747787531
1999	5.428716168557447
2000	5.5267635952287115
2001	5.630332287985211
2002	5.740196189320734
2003	5.853360390697164
2004	5.970426175781245
2005	6.092703900188467
2006	6.219741314199302
2007	6.348158629536042
2008	6.479212145336101
2009	6.613411327743028
2010	6.742254678074749
2011	6.88002881102062
2012	7.032222063424213
2013	7.1961958664242855
2014	7.376155339453902
2015	7.569020417381389
2016	7.765851575776938
2017	7.9700981769532016
2018	8.185509441085228
2019	8.402525331047213
2020	8.600041362937663
2021	8.775513454279631
2022	8.975875163376386
2023	9.23339982880797