Year	% of total population
1960	10.749926249115523
1961	11.003925798916436
1962	11.481953261669373
1963	11.97930967733112
1964	12.476110619611102
1965	12.96652522358519
1966	13.25143315073381
1967	13.340444902223977
1968	13.457915317128213
1969	13.55679265950408
1970	13.625191024868077
1971	12.758266082875814
1972	12.662694064489122
1973	12.583489915332645
1974	12.489983094269515
1975	12.383897489843376
1976	12.282764185045375
1977	12.183640871885732
1978	12.092985655781535
1979	12.011763659018351
1980	11.93282354641358
1981	11.921514841109966
1982	11.975285345339842
1983	12.030736341181502
1984	12.081020991158871
1985	12.122325842182626
1986	12.155672475506966
1987	12.176790503803137
1988	12.182674569954397
1989	12.16312703079867
1990	12.130891645884047
1991	12.198714805842846
1992	12.36963212213288
1993	12.542975841999615
1994	12.702578198091391
1995	12.88817108626218
1996	13.065561150449303
1997	13.19857355736372
1998	13.333380032525232
1999	13.46652706958803
2000	13.589981818302729
2001	13.670362726451108
2002	13.71431663880099
2003	13.75200388380337
2004	13.786987558057007
2005	13.820898709263297
2006	13.914974993130889
2007	14.06845274402575
2008	14.21865090783943
2009	14.359249837205187
2010	14.501532608966865
2011	14.664141870862684
2012	14.836007073574375
2013	14.992949757504364
2014	15.13001605798614
2015	15.258389829522576
2016	15.357653391057315
2017	15.442698716942981
2018	15.557097865460126
2019	15.644077028962379
2020	15.770581416305804
2021	15.904388050051985
2022	16.010865322881095
2023	16.134814236655508