Year	% of total population
1960	2.58357966792813
1961	2.57203128140206
1962	2.56183786978367
1963	2.55312553762262
1964	2.54628278611086
1965	2.54034159172355
1966	2.5360228306889
1967	2.53459824131209
1968	2.53575056238334
1969	2.53931008689731
1970	2.57931919843088
1971	2.67567944196332
1972	2.78608559386946
1973	2.88176100551144
1974	2.96267089705462
1975	3.0314679258315
1976	3.0930502304779
1977	3.15153126019033
1978	3.20763039485625
1979	3.26274357705266
1980	3.2623701309983
1981	3.21290841976985
1982	3.17430062301968
1983	3.14623065769805
1984	3.12988291820702
1985	3.12740420254703
1986	3.14012503194456
1987	3.16767346965609
1988	3.20838979562662
1989	3.2602641893143
1990	3.32164913920654
1991	3.39092976727584
1992	3.4664227031481
1993	3.54737823310596
1994	3.68421713598278
1995	3.86928280976544
1996	4.04944838965675
1997	4.22789922449803
1998	4.40466037371687
1999	4.57803326781094
2000	4.74629312751634
2001	4.91461597331515
2002	5.04309728791062
2003	5.13030933697106
2004	5.2122401908101
2005	5.28474916113534
2006	5.35030171793531
2007	5.40819888438947
2008	5.45828904338704
2009	5.50410595455398
2010	5.55599030458517
2011	5.62303906091206
2012	5.71149647102336
2013	5.82441694936847
2014	5.94875178890724
2015	6.08037877221158
2016	6.22563574963941
2017	6.38490580285377
2018	6.56109794124869
2019	6.76022278314437
2020	6.96498579251993
2021	7.16811987472245
2022	7.40438377279324
2023	7.67430168916407