Year	% of total population
1960	42.3540895063849
1961	41.6468231108346
1962	40.9180553168154
1963	40.2916928459052
1964	39.7846799889318
1965	39.367227320056
1966	38.9962198172611
1967	38.6278364086575
1968	38.2292736017686
1969	37.768221598893
1970	37.1574782972865
1971	36.4464392394298
1972	35.7785205519543
1973	35.1908675310193
1974	34.6807290148349
1975	34.2239667943638
1976	33.8097790532291
1977	33.3925353631793
1978	32.926227760867
1979	32.4483261996685
1980	31.9469415403472
1981	31.4302741724435
1982	30.9711757184259
1983	30.5603988524219
1984	30.1626059266312
1985	29.7357761944926
1986	29.2497936306207
1987	28.7453468860858
1988	28.2640372858765
1989	27.7949492783392
1990	27.3546250319751
1991	26.9535311312902
1992	26.5535154592403
1993	26.1695350117709
1994	25.7956576735323
1995	25.4349691689205
1996	25.1192030457472
1997	24.831986440815
1998	24.5615302708138
1999	24.298403630652
2000	24.0171398328529
2001	23.7030258099214
2002	23.358011117076
2003	22.9724213942885
2004	22.5333419613171
2005	22.0451844262564
2006	21.5321982329696
2007	21.0178151420762
2008	20.5125612106282
2009	20.0385430146703
2010	19.5544446602161
2011	19.0340322688125
2012	18.501167855116
2013	17.9292329941372
2014	17.3089658022076
2015	16.6542953420247
2016	15.9862943324728
2017	15.3173352724922
2018	14.7241907781503
2019	14.2774128412868
2020	13.9401347581562
2021	13.6501764803891
2022	13.4366639845505
2023	13.3120766895459