Year	% of total population
1960	28.24144971924451
1961	28.308978306188592
1962	28.40528287009659
1963	28.547315423176595
1964	28.74563167972422
1965	28.992444666661594
1966	29.28626318669255
1967	29.61612429896982
1968	29.971433430955436
1969	30.35387841585166
1970	30.70411387098289
1971	30.997138857465078
1972	31.30245373195652
1973	31.60305772166339
1974	31.900105721613244
1975	32.18862666993547
1976	32.470856893475876
1977	32.72862830603573
1978	32.969919268625354
1979	33.12918259845311
1980	33.22316221723996
1981	33.376779899213226
1982	33.520934187921284
1983	33.647254060861115
1984	33.80444741637027
1985	34.016218626700145
1986	34.258450544635075
1987	34.52621082043013
1988	34.88861061922196
1989	34.2510525824303
1990	33.024353170315294
1991	32.28753844712189
1992	32.496100913260534
1993	33.41262337125931
1994	34.05203702863877
1995	34.38323669744208
1996	34.44083448472793
1997	34.53878409912765
1998	34.6754100384194
1999	34.85541308097554
2000	35.07315553650707
2001	35.27392549247031
2002	35.435841827327664
2003	35.533746938330836
2004	35.60341776631781
2005	35.676574848240016
2006	35.7776973030769
2007	35.8967352140682
2008	36.00437216202474
2009	36.09197597001109
2010	36.16738050153192
2011	36.23576977073216
2012	36.44912660181902
2013	36.71574093062451
2014	36.964943787565794
2015	37.21485655328381
2016	37.48582873752327
2017	37.774477080902955
2018	38.08574973110006
2019	38.40751016981481
2020	38.71798911323321
2021	39.02512169586675
2022	39.274956850804664
2023	39.41054079057729