Year	% of total population
1960	2.7030302718971
1961	2.81673274782135
1962	2.92121052927822
1963	3.04110002677878
1964	3.18510807129812
1965	3.36739376612459
1966	3.56339043033763
1967	3.74970346295463
1968	3.93549315957072
1969	4.1264892539516
1970	4.33557269445066
1971	4.52527611915291
1972	4.68507449797842
1973	4.852513274679
1974	5.03283328795142
1975	5.24313617874832
1976	5.48543526935662
1977	5.73134103753068
1978	5.96335806213641
1979	6.18331220393402
1980	6.42055122737177
1981	6.654493276736
1982	6.8541999514216
1983	7.03265553174933
1984	7.2194032853411
1985	7.45517103745972
1986	7.70848554041106
1987	7.94966167628658
1988	8.17899517201703
1989	8.39389901243032
1990	8.63528565667624
1991	8.90465467151137
1992	9.16504367613784
1993	9.41761218087664
1994	9.6831394326234
1995	10.008097556335
1996	10.3041181309978
1997	10.5013696129128
1998	10.7144643932627
1999	10.9451051718208
2000	11.1682769552806
2001	11.4200067734645
2002	11.6909678373601
2003	11.9580004607595
2004	12.2081504210853
2005	12.4359464770481
2006	12.6218529178794
2007	12.7458212081759
2008	12.8672679233498
2009	13.049293159088
2010	13.2853459984753
2011	13.5772126976964
2012	13.93621977147
2013	14.3677323285678
2014	14.8919579395671
2015	15.4987301412051
2016	16.1074806140512
2017	16.6937869282238
2018	17.3158120203621
2019	18.003176709449
2020	18.7604182532697
2021	19.6032705508389
2022	20.4726283622418
2023	21.3736876399774