Year	% of total population
1960	4.18163325177275
1961	4.290116250920284
1962	4.414064141826365
1963	4.543603143250175
1964	4.68576617461004
1965	4.834671220026155
1966	4.992731361697234
1967	5.184579505012215
1968	5.389425266959072
1969	5.609151441891148
1970	5.838968750433694
1971	6.088015354694228
1972	6.350192063684174
1973	6.609495559595379
1974	6.874836193001518
1975	6.574293189050245
1976	6.774019826511604
1977	6.97529378782629
1978	7.167163344695835
1979	7.331846461061363
1980	7.552141815060065
1981	7.7762517861060365
1982	7.938380529630871
1983	8.100467600301734
1984	8.278964474911108
1985	8.464693756263143
1986	8.665190922892442
1987	8.871273290667872
1988	9.08557545769412
1989	9.292502601390348
1990	9.514251918741921
1991	9.734615160372408
1992	9.82707853730887
1993	9.910991649388205
1994	10.010083036048618
1995	10.12558742216837
1996	10.31830002412884
1997	10.448787741365287
1998	10.575477318699653
1999	10.689096544963123
2000	10.83537808416475
2001	10.975671517562331
2002	11.0932468265937
2003	11.213360967633829
2004	11.347881688341932
2005	11.449662838436888
2006	11.554826149078828
2007	11.613560137769683
2008	11.758416938895405
2009	11.919440043742599
2010	11.999848049884838
2011	11.994986363139
2012	12.04017407847627
2013	12.13024726039107
2014	12.241965403975156
2015	12.43656509411907
2016	12.645116224887834
2017	12.792819648064784
2018	12.937543758867132
2019	13.073705816102823
2020	13.213782318965533
2021	13.36521970332592
2022	13.530750139833566
2023	13.70304014320253