Year	% of total population
1960	43.0620163480956
1961	43.3849093103273
1962	43.7085939910994
1963	44.0401244090155
1964	44.3619983224939
1965	44.7492901995731
1966	45.148201930469
1967	45.3705420757774
1968	45.3980294211128
1969	45.2623612396197
1970	44.9934960043675
1971	44.4208986044941
1972	43.4748275706066
1973	42.349940771221
1974	41.1825892881887
1975	40.0339861074333
1976	38.9614523203264
1977	38.0027748047727
1978	37.1627502175805
1979	36.4330185046575
1980	35.7944814462417
1981	35.3010297287308
1982	34.9241848819872
1983	34.5789301397699
1984	34.2750481551939
1985	34.0241334974003
1986	33.8338190477037
1987	33.7177389192705
1988	33.6856413699359
1989	33.7332204788853
1990	33.8235876761268
1991	33.8816618884417
1992	33.7794650747561
1993	33.4735789025116
1994	33.0345855232329
1995	32.5110860223124
1996	31.9138814961849
1997	31.2416062392504
1998	30.543649026333
1999	29.8812004926802
2000	29.2738550718119
2001	28.6996221878051
2002	28.1004430564548
2003	27.2197533846489
2004	25.9258792658477
2005	24.5717196960709
2006	23.4025297109468
2007	22.4108917361504
2008	21.5465754516508
2009	20.721182073886
2010	20.4502636480452
2011	20.5523246460415
2012	20.1465051947464
2013	19.8996094867688
2014	20.2402957133688
2015	20.3692419733038
2016	20.1922306143108
2017	19.9932524913614
2018	19.9291083172336
2019	20.0682845571359
2020	20.298970739826
2021	20.3771974395624
2022	20.1867163689443
2023	19.882740568135