Year	% of total population
1960	2.58485321308677
1961	2.51173304031389
1962	2.44963998919792
1963	2.39632338697893
1964	2.35427732890465
1965	2.33385215667043
1966	2.363908134622
1967	2.37671402505901
1968	2.35118453532656
1969	2.34083402246822
1970	2.33883936482426
1971	2.34795757245128
1972	2.36760096182363
1973	2.39006611107522
1974	2.41755195162954
1975	2.45326321694256
1976	2.48292297909844
1977	2.51089207377409
1978	2.5409441331268
1979	2.57362938273921
1980	2.6074282305651
1981	2.63362245129649
1982	2.65441103154878
1983	2.67419077182151
1984	2.6967424330916
1985	2.73018072446495
1986	2.79752106455533
1987	2.83613194873194
1988	2.82356712063529
1989	2.81136114217087
1990	2.80005894186538
1991	2.792635876213
1992	2.79192510470434
1993	2.79904231951784
1994	2.81327788761684
1995	2.83422068397947
1996	2.86106697918556
1997	2.9196268326514
1998	3.0075649842281
1999	3.09987047945675
2000	3.19432173965791
2001	3.2889982408596
2002	3.38060799525587
2003	3.47556901359714
2004	3.58257725184595
2005	3.69540879859782
2006	3.81362793757778
2007	3.93735796858018
2008	4.03750067606711
2009	4.11351451797655
2010	4.20026304465628
2011	4.30778952490465
2012	4.42995459130528
2013	4.55715838691208
2014	4.68685831622177
2015	4.78396205843873
2016	4.86627953191031
2017	4.99347945661594
2018	5.15704094468311
2019	5.34293922084087
2020	5.53925264715533
2021	5.71841409805978
2022	5.89798938657684
2023	6.09525772513271