Year	% of total population
1960	6.514918648244625
1961	6.640554953295403
1962	6.768371007003347
1963	6.8979358443210295
1964	7.0301777218089
1965	7.1636007698415325
1966	7.299703238227327
1967	7.437925238674348
1968	7.5780127772342
1969	7.737101279240976
1970	8.006026618140051
1971	8.289314491883262
1972	8.577237520970234
1973	8.788120248316385
1974	8.75687935862103
1975	8.730929200078135
1976	8.717322900133214
1977	8.747065725880686
1978	8.874653038034772
1979	8.992262876787924
1980	8.742318713699973
1981	8.45428364599017
1982	8.373925450946999
1983	8.5215231110008
1984	8.729739251946194
1985	8.952691526336471
1986	9.19187304437115
1987	9.44550938788603
1988	9.71996414574585
1989	10.023901252302123
1990	10.356714274117792
1991	10.711802050817056
1992	11.087392652596659
1993	11.19702808302944
1994	11.343218099875546
1995	11.416693825318642
1996	11.442632251734205
1997	11.471052641074717
1998	11.501135572103546
1999	11.5518825064307
2000	11.654446644758167
2001	11.799870673927867
2002	11.950534367145156
2003	11.924755801424135
2004	11.881581605806355
2005	11.859536139503186
2006	11.797730666015706
2007	11.723577590998257
2008	11.669884505982186
2009	11.589858207654531
2010	11.484293606171013
2011	11.358693545149103
2012	11.191465934773886
2013	10.989064007007677
2014	10.787288139446481
2015	10.595052454136674
2016	10.41191323090821
2017	10.235852903454461
2018	10.065090886478668
2019	9.907846556551622
2020	9.763577602738946
2021	9.640301912198963
2022	9.544661428726272
2023	9.469482567154518