Year	% of total population
1960	2.8709159237043
1961	3.0309718237328
1962	3.16980876895898
1963	3.21494197242132
1964	3.2222438464631
1965	3.25152775800524
1966	3.29467636544877
1967	3.3433703467994
1968	3.39361674332729
1969	3.45076123062201
1970	3.52161837720173
1971	3.60803264910756
1972	3.68397819295674
1973	3.72685377781476
1974	3.76257499372676
1975	3.80950183047917
1976	3.86412061775272
1977	3.93321312396961
1978	4.0255553095314
1979	4.13745452959439
1980	4.2508626873956
1981	4.35720940208176
1982	4.46292353345516
1983	4.55370969624734
1984	4.61514060602347
1985	4.6761502833484
1986	4.7622851538721
1987	4.87236751159193
1988	5.00864628857887
1989	5.17223929185922
1990	5.35233745150373
1991	5.52388274676378
1992	5.66248388774968
1993	5.76509020059087
1994	5.84268467983134
1995	5.90101339631057
1996	5.936716979008
1997	5.96842577244635
1998	6.02759272897697
1999	6.11645137392744
2000	6.21820079354864
2001	6.325289405128
2002	6.43175047732039
2003	6.53351739459407
2004	6.63638253970793
2005	6.74223082108155
2006	6.84813882715156
2007	6.96120838921315
2008	7.11077630148857
2009	7.31923421760456
2010	7.5638378281502
2011	7.81882477975456
2012	8.0995108029559
2013	8.43443224039207
2014	8.83641413854123
2015	9.30659403798313
2016	9.81686530217302
2017	10.3212960434929
2018	10.8086691063598
2019	11.2854948664601
2020	11.783114473996
2021	12.2939577624239
2022	12.7923790409775
2023	13.3059143120986