Year	% of total population
1960	10.2327151780699
1961	10.2870612445837
1962	10.2853180737924
1963	10.2863797694548
1964	10.3703108142337
1965	10.5255250192183
1966	10.6930369537087
1967	10.8678345643088
1968	11.0172630979446
1969	11.158129832833
1970	11.3574376090702
1971	11.5835343405258
1972	11.7889628316063
1973	12.0138904358027
1974	12.2621493634424
1975	12.5687263909262
1976	12.9143109939433
1977	13.2293286093341
1978	13.4957720866098
1979	13.7119637074596
1980	13.8398142270917
1981	13.8765577051788
1982	13.8892687662182
1983	13.9062168556139
1984	13.9501154127057
1985	14.0616885405229
1986	14.2195051670416
1987	14.3507573781
1988	14.448400352452
1989	14.5251784570373
1990	14.5599180415433
1991	14.5490849462275
1992	14.5472495332946
1993	14.5753656834995
1994	14.6315813939352
1995	14.7122023978244
1996	14.8157748337233
1997	14.9428160515084
1998	15.0735746679795
1999	15.1930270760505
2000	15.3075740536245
2001	15.4278215099573
2002	15.5072301442456
2003	15.5669101940612
2004	15.6734904894914
2005	15.8112049046135
2006	15.9922796089905
2007	16.1957643587084
2008	16.3802859763676
2009	16.5867316231824
2010	16.7899243144926
2011	17.0105620263072
2012	17.2646727544099
2013	17.4864159848335
2014	17.6841958960604
2015	17.8617649061815
2016	18.0129627758513
2017	18.1754305383055
2018	18.3627296893722
2019	18.5569421853672
2020	18.7258475405716
2021	18.9653136117842
2022	19.3092546947121
2023	19.6652221426088