Year	% of total population
1960	5.445239164324475
1961	5.556389701028011
1962	5.678607665762681
1963	5.803754152735553
1964	5.93214506843498
1965	6.0659663708355005
1966	6.200963287354707
1967	6.346189424703554
1968	6.514358632657016
1969	6.706269899342505
1970	6.894071909105194
1971	7.098566791096694
1972	7.315529798033755
1973	7.54573848582151
1974	7.778252086635352
1975	7.992093204793201
1976	8.21585500199196
1977	8.34282032952971
1978	8.34306541012481
1979	8.365252048755103
1980	8.396331437588806
1981	8.416620177899501
1982	8.446097505750757
1983	8.490183585649206
1984	8.536485447988513
1985	8.57826105565746
1986	8.61618732643451
1987	8.65116475659744
1988	8.68823994384166
1989	8.72712330976746
1990	8.790425412472763
1991	8.947007226376241
1992	9.040226927066454
1993	8.990009348389162
1994	8.940814495738733
1995	8.896949295701383
1996	8.86081898212671
1997	8.824979788487866
1998	8.782097967667797
1999	8.7350503114092
2000	8.68578407021067
2001	8.74699360246738
2002	8.858670322113218
2003	8.90186326098901
2004	8.931701043663201
2005	8.96597674871838
2006	8.998091891198163
2007	9.110576257739437
2008	9.241905503855682
2009	9.297386565166336
2010	9.330834379297423
2011	9.35484988530603
2012	9.357182794825118
2013	9.345189600340637
2014	9.333452006755344
2015	9.3306309528808
2016	9.33747877845732
2017	9.344742623495211
2018	9.352895172376254
2019	9.355373378661433
2020	9.360101737584511
2021	9.383131806046618
2022	9.373093696758374
2023	9.321862860196696