Year	% of total population
1960	8.10181679754216
1961	8.32314691598286
1962	8.59373911475558
1963	8.89061048954303
1964	9.20098560145473
1965	9.52743669567921
1966	9.8778429600955
1967	10.2173356936497
1968	10.5322123195925
1969	10.8384423779232
1970	11.1484856973014
1971	11.4508689196931
1972	11.7247822316458
1973	11.9755630660517
1974	12.2164149722883
1975	12.4397366597862
1976	12.6398519486434
1977	12.8127325164339
1978	12.9584113616579
1979	13.0701841969994
1980	13.1264479125911
1981	13.1413025637345
1982	13.1455439708686
1983	13.1523001052525
1984	13.1667833972015
1985	13.2008772434827
1986	13.2695165389485
1987	13.3684124408854
1988	13.5111883516422
1989	13.7028141166369
1990	13.9296930623441
1991	14.1861890245986
1992	14.4620909246728
1993	14.7638215030416
1994	15.0757510049504
1995	15.3785349210523
1996	15.6835987097324
1997	16.0011607983928
1998	16.3138221898217
1999	16.610915100213
2000	16.9000731918846
2001	17.1993929109634
2002	17.5138430709938
2003	17.8216723453109
2004	18.1080217025673
2005	18.3646253783986
2006	18.5525864045979
2007	18.6547346986891
2008	18.7655558273225
2009	18.9618946087991
2010	19.2511262909557
2011	19.6114496096654
2012	19.9499810031062
2013	20.2389563136873
2014	20.522461240682
2015	20.8045358405077
2016	21.0983621746457
2017	21.3725604536042
2018	21.6186355834736
2019	21.8804827755261
2020	22.1814168484866
2021	22.5081411707489
2022	22.8218932917579
2023	23.1491043127459