Year	% of total population
1960	40.1310412332195
1961	40.2083028296822
1962	40.3235803693489
1963	40.4936055093087
1964	40.6550838187057
1965	40.7517590986976
1966	40.8070550784014
1967	40.8330693868048
1968	40.8315917169804
1969	40.8073110762161
1970	40.7606308478102
1971	40.6928696117749
1972	40.6172507913214
1973	40.5323931175884
1974	40.451963284282
1975	40.4030589943332
1976	40.3856889891845
1977	40.3971334906262
1978	40.432209232948
1979	40.4851020234545
1980	40.5627806020054
1981	40.6715812559519
1982	40.8097645262998
1983	40.9622643601417
1984	41.1187085085259
1985	41.2859962927139
1986	41.4648122216807
1987	41.6508702898385
1988	41.8374408452
1989	42.0041254917152
1990	42.1311228395526
1991	42.1925529874874
1992	42.1806105654072
1993	42.1108394568973
1994	41.9854061342165
1995	41.8110512269323
1996	41.5923313965658
1997	41.3290613691616
1998	41.0329137108331
1999	40.711298814305
2000	40.3656743906817
2001	39.9855199781713
2002	39.5616694503308
2003	39.1085132108787
2004	38.6306762954975
2005	38.1375817262272
2006	37.6666255139059
2007	37.2226510298912
2008	36.7945841608794
2009	36.3896712830994
2010	36.0115738483046
2011	35.6477424055023
2012	35.2827149403094
2013	34.9150626154469
2014	34.5519911185721
2015	34.1893703158829
2016	33.8427083414517
2017	33.527909194638
2018	33.2281203197735
2019	32.9324440492389
2020	32.642847758493
2021	32.3581190032574
2022	32.0762187607237
2023	31.7922020346082