Year	% of total population
1960	8.1902352614119
1961	8.37225179078195
1962	8.50825665155807
1963	8.57898246250819
1964	8.63353212341571
1965	8.78951085426297
1966	8.99049026689217
1967	9.14917733768712
1968	9.32102827404689
1969	9.47789717194289
1970	9.65922378843876
1971	9.82808387577503
1972	9.97521683907709
1973	10.1278473342417
1974	10.2197623163181
1975	10.3320846440581
1976	10.4935161021326
1977	10.6508812375795
1978	10.817017714937
1979	10.9853233477367
1980	11.1623527212688
1981	11.3185433530546
1982	11.4680083004256
1983	11.6236544321997
1984	11.7905760082941
1985	12.0039862840222
1986	12.2774445701868
1987	12.604606348455
1988	12.9532721625925
1989	13.3062583625464
1990	13.6615946628184
1991	13.9900881766404
1992	14.2866019898526
1993	14.5830655742701
1994	14.8929233685122
1995	15.2224061275252
1996	15.5507076280289
1997	15.8728139446419
1998	16.1948101320596
1999	16.4710961152805
2000	16.7169327929674
2001	16.9762893413548
2002	17.0772335128396
2003	16.961399761813
2004	16.7517969064285
2005	16.663936538577
2006	16.6392783476587
2007	16.5234750501163
2008	16.5229628561542
2009	16.6915201360117
2010	16.9477756558298
2011	17.2108979106387
2012	17.4919299000709
2013	17.8847475677717
2014	18.2937848683828
2015	18.5866262491401
2016	18.8238250273302
2017	19.0674119455967
2018	19.2922223977269
2019	19.4846195014225
2020	19.6725085886783
2021	19.902881708411
2022	20.2650393868057
2023	20.7357812306083