Year	% of total population
1960	3.7762391838704072
1961	3.821642637832065
1962	3.8318524506326606
1963	3.8352044803334198
1964	3.8363458571040914
1965	3.85294300038639
1966	3.878539187525646
1967	3.895963864244882
1968	3.913737428066657
1969	3.938300925086717
1970	3.9800393701992696
1971	4.038970823737551
1972	4.093515026931856
1973	4.1451740553763505
1974	4.195439999389529
1975	4.244878884877316
1976	4.294851308202571
1977	4.34662523188153
1978	4.406631088841604
1979	4.422723643685117
1980	4.399492327996593
1981	4.377007930702119
1982	4.3541238108321
1983	4.330603507488609
1984	4.308660921294075
1985	4.291113205688368
1986	4.27890033134506
1987	4.2717135970289934
1988	4.2709501916047135
1989	4.27239640426496
1990	4.272552056265861
1991	4.274320845476045
1992	4.2781676735959575
1993	4.27947671598502
1994	4.277915282010174
1995	4.279575296259893
1996	4.28380320507493
1997	4.288467220668952
1998	4.294421911984593
1999	4.302282309402332
2000	4.355051510078941
2001	4.363853491610924
2002	4.373764267585838
2003	4.386645367295064
2004	4.399180854377726
2005	4.411084424667392
2006	4.423890795237609
2007	4.436335667681692
2008	4.4458052625260525
2009	4.452856148665627
2010	4.475720158724409
2011	4.48346049227792
2012	4.5003720657589055
2013	4.526769525582886
2014	4.554014700986419
2015	4.581045980336337
2016	4.607184597707137
2017	4.630833594866242
2018	4.655193253411807
2019	4.677757883972214
2020	4.705263216221401
2021	4.741076432736968
2022	4.873565348566142
2023	4.899753035564204