Year	% of total population
1960	6.029621995748569
1961	6.130350792712972
1962	6.211051273801617
1963	6.297247400458535
1964	6.414977377249427
1965	6.580666799260407
1966	6.758485478925085
1967	6.927993170472327
1968	7.116055121847148
1969	7.297872123726239
1970	7.458912666007729
1971	7.628853055289557
1972	7.816783341975658
1973	7.990928744263071
1974	8.175479704821274
1975	8.366225301077401
1976	8.54620496865966
1977	8.734811671678447
1978	8.910401108445088
1979	9.039222238345927
1980	9.066908932087719
1981	8.970069118724338
1982	8.804180799632668
1983	8.658502309499836
1984	8.56557028113389
1985	8.478813821847147
1986	8.42218411633163
1987	8.424452321534641
1988	8.490329340107865
1989	8.629524278036206
1990	8.812657795462655
1991	9.031299971244426
1992	9.292428860811498
1993	9.57814164946968
1994	9.836777221975735
1995	10.054092635250786
1996	10.222039568420414
1997	10.350023027532291
1998	10.434213132544564
1999	10.476864821017177
2000	10.5532243640566
2001	10.69508175250487
2002	10.9145173027192
2003	11.16680091336659
2004	11.394980890006558
2005	11.570457978710078
2006	11.676627389691228
2007	11.66616909364574
2008	11.50328972856002
2009	11.297121694871464
2010	11.117317987189786
2011	11.064265340537647
2012	11.14858585973139
2013	11.280975027739979
2014	11.479889568507355
2015	11.715950761226297
2016	11.942418513582108
2017	12.176172547050102
2018	12.437306516546208
2019	12.732035498180137
2020	13.003057760706024
2021	13.191546345907357
2022	13.314941515317615
2023	13.60456844727251