Year	% of total population
1960	38.5592013550582
1961	37.8323072121659
1962	37.2255713590032
1963	36.7401986541958
1964	36.3756801800303
1965	36.1301867413901
1966	36.0108268633328
1967	36.0108357475177
1968	35.3401394783724
1969	33.818341194146
1970	32.1678919903584
1971	30.6891176820613
1972	29.4643938032742
1973	28.4905762932967
1974	27.7623687508321
1975	27.2579380707185
1976	26.7983008155629
1977	26.5043622437792
1978	26.5570832735679
1979	26.8774392468943
1980	27.3177762207626
1981	28.0357305168245
1982	28.9150802838706
1983	29.6520241456756
1984	30.2797725803992
1985	30.780954327776
1986	31.1752760524206
1987	31.2672876416087
1988	30.9482523862144
1989	30.3802879666399
1990	29.6798176355938
1991	28.9288873365072
1992	28.1793197434496
1993	27.4499344213335
1994	26.727504740183
1995	25.9852912205625
1996	25.4659535474893
1997	24.9516726972998
1998	24.1121244176055
1999	23.1394809403392
2000	22.1747376526295
2001	21.3166589345282
2002	20.6117560158788
2003	20.0535054542575
2004	19.6018419673361
2005	19.0040115688099
2006	17.7431633627134
2007	16.0983318530183
2008	14.7291883043225
2009	13.8458500090834
2010	13.7447650968176
2011	14.0747305749542
2012	14.2593750618511
2013	14.3316711128707
2014	14.3343702146849
2015	14.3178587085039
2016	14.3286837398462
2017	14.3965147584791
2018	14.5293695045808
2019	14.7122010730534
2020	14.9409854694949
2021	15.1430338314588
2022	15.2321568337938
2023	15.216398330922