Year	% of total population
1960	7.969391719647609
1961	8.158218238980927
1962	8.253915730196667
1963	8.3017655422934
1964	8.349972035993979
1965	8.424726784475133
1966	8.513870144587585
1967	8.586295585023592
1968	8.65294987921015
1969	8.716873584687319
1970	8.784665522631514
1971	8.858288795922267
1972	8.99061838589951
1973	9.145041413110505
1974	9.309091214335238
1975	9.482493817410083
1976	9.665612494403755
1977	9.857566512023585
1978	10.059365683337921
1979	10.270593646260377
1980	10.493147334997035
1981	10.619549735715484
1982	10.69942832334478
1983	10.785987214319617
1984	10.882439774860849
1985	10.991412513102134
1986	11.116474208191924
1987	11.253259818865862
1988	11.399471379455289
1989	11.55418185948151
1990	11.720714079984488
1991	11.757784103588264
1992	11.735223210615006
1993	11.723187676062194
1994	11.720836169223107
1995	11.727874230768014
1996	11.745019986240415
1997	11.772086017531315
1998	11.813327361491917
1999	11.872488559192645
2000	11.949436961802753
2001	11.992614683791698
2002	12.04309743559065
2003	12.100616979672518
2004	12.168435853113099
2005	12.240211260285303
2006	12.310738462165933
2007	12.382977890126757
2008	12.460137323252612
2009	12.54402110264996
2010	12.631016059742892
2011	12.703013553270361
2012	12.777679898300192
2013	12.859676220776741
2014	12.951475999698566
2015	13.05237325572074
2016	13.163029995526221
2017	13.283791114526275
2018	13.413304174191328
2019	13.551589133194133
2020	13.708625500293406
2021	13.891144377564535
2022	14.086150775477718
2023	14.269585200770377