Year	% of total population
1960	37.543934391309
1961	35.639179381679
1962	35.8960361104084
1963	36.0547428032091
1964	36.2190751243954
1965	36.4961216861483
1966	36.7072434607646
1967	36.7120040634347
1968	36.5263855155664
1969	36.1464052723228
1970	36.3201487891182
1971	37.0889395497147
1972	37.7074385177976
1973	38.0464897863348
1974	38.1307740144507
1975	38.1849241414061
1976	38.2549107564454
1977	38.1316345782284
1978	37.6459875036343
1979	36.8031495227433
1980	35.872826986755
1981	34.9976057299467
1982	34.1946810062526
1983	33.5287711289144
1984	32.9066632493629
1985	32.2202870109162
1986	31.5426429608697
1987	30.9825462921946
1988	30.5921621955742
1989	30.3771899349844
1990	30.2711426726921
1991	30.2612226706613
1992	30.3387994287684
1993	30.4335056390977
1994	30.4317962607535
1995	29.9646701174924
1996	29.2064493314601
1997	28.5059318428889
1998	27.7687064008571
1999	26.9955576989066
2000	26.3585524795489
2001	25.8115289891302
2002	25.1853089565609
2003	24.5157892774588
2004	23.8348182082197
2005	23.1585916736319
2006	22.5105502067794
2007	21.9362198551262
2008	21.4416521102158
2009	21.0393830952314
2010	20.6765465131616
2011	20.3134258315597
2012	19.9946551115268
2013	19.7481212400776
2014	19.5839741543581
2015	19.4842588044181
2016	19.4227658565906
2017	19.3846893992204
2018	19.3455302398769
2019	19.2801495638547
2020	19.2642556686662
2021	19.2429888801191
2022	19.1796109184135
2023	19.0992405063291