Year	% of total population
1960	4.848292163424303
1961	5.098325324360162
1962	5.356393737002976
1963	5.615778321755089
1964	5.873901161932972
1965	6.1364147991053635
1966	6.378928585737584
1967	6.622115914665962
1968	6.871984907689987
1969	7.132178763305126
1970	7.386317787905909
1971	7.6356816016290665
1972	7.90793999297865
1973	8.181068331613833
1974	8.451874204298791
1975	8.72610166106941
1976	8.998830464190908
1977	9.265209403429804
1978	9.502113379352059
1979	9.696794151627731
1980	9.920102245598343
1981	10.18802814226612
1982	10.453692767927327
1983	10.714357481977867
1984	10.94541394722383
1985	11.174698338471986
1986	11.416403134687997
1987	11.665756684968352
1988	11.928082094783733
1989	12.175517683030078
1990	12.451215682854558
1991	12.73849911837442
1992	12.845166768474009
1993	12.903295383973422
1994	12.926576867997708
1995	12.9947368855405
1996	13.226388337850064
1997	13.381465698061396
1998	13.513049785595028
1999	13.627843161373454
2000	13.769385215445112
2001	13.916548833470053
2002	14.045117362850531
2003	14.177953059891522
2004	14.27853044438592
2005	14.338405080859959
2006	14.41312743038407
2007	14.434039565486032
2008	14.57606432584918
2009	14.71603346209305
2010	14.848398430536601
2011	14.979504358184467
2012	15.103733554251795
2013	15.230961455015375
2014	15.362064447576842
2015	15.483643651198951
2016	15.610387784963004
2017	15.738609060470802
2018	15.868273637278614
2019	15.995936801761895
2020	16.133237151288473
2021	16.289034304766883
2022	16.464749553954665
2023	16.65041254949524