Year	% of total population
1960	3.6298755534313027
1961	3.6124302236230132
1962	3.6117760983214615
1963	3.611871450061066
1964	3.61246130564743
1965	3.621516058435027
1966	3.637532363595312
1967	3.657867947354869
1968	3.681281096836997
1969	3.7048209281255176
1970	3.727738676832861
1971	3.7527893697179135
1972	3.78299767136454
1973	3.819333230267616
1974	3.8629867636352504
1975	3.9096103532694433
1976	3.9557719075661
1977	4.0022506831530125
1978	4.050889719410615
1979	4.099092122942809
1980	4.13679648339312
1981	4.161926139786944
1982	4.180466465424489
1983	4.198393461913332
1984	4.220329862018468
1985	4.24745630196341
1986	4.278318894458761
1987	4.311441363362506
1988	4.349637780542694
1989	4.3961451037270045
1990	4.444785054611464
1991	4.495286697403685
1992	4.5529897783625914
1993	4.620874818797612
1994	4.691585953647903
1995	4.763706253279914
1996	4.837492956303333
1997	4.912881245962721
1998	4.995292740814554
1999	5.0803025748225865
2000	5.164638772831971
2001	5.250936333414314
2002	5.339135227022498
2003	5.424500099131569
2004	5.501068482609346
2005	5.5726272961931445
2006	5.643718388949961
2007	5.7080487709576655
2008	5.764092115449596
2009	5.820385707778593
2010	5.883062635930793
2011	5.960909117792907
2012	6.056493605724644
2013	6.167937898472144
2014	6.303174874113498
2015	6.469737189232781
2016	6.65284556192412
2017	6.853750708910649
2018	7.070994636931237
2019	7.293677243981245
2020	7.5098494578745685
2021	7.689650977000262
2022	7.867031622659733
2023	8.077907637786849