Year	% of total population
1960	56.3155883476881
1961	56.0279455643694
1962	55.4027617951669
1963	54.8184198542805
1964	54.2849898580122
1965	53.7947860030671
1966	53.3327821185939
1967	52.8967973465282
1968	52.489329533443
1969	52.1082317674437
1970	51.8270755191215
1971	51.650973165375
1972	51.4875981938517
1973	51.3192356193617
1974	51.1646414614736
1975	51.0419935609098
1976	50.9400758418674
1977	50.853276337501
1978	50.7786615439407
1979	50.6919814349011
1980	50.5678428145253
1981	50.3983059392962
1982	50.2412539259494
1983	50.1237213833414
1984	50.0119620658966
1985	49.9254270357481
1986	49.8733549914652
1987	49.8369321745363
1988	49.803952389685
1989	49.7662735748648
1990	49.7170587404336
1991	49.6920802053882
1992	49.6999554310455
1993	49.7136883493782
1994	49.7298455604365
1995	49.7456359851815
1996	49.7651611378608
1997	49.7849712326379
1998	49.8018456255812
1999	49.8194742186619
2000	49.8350891353661
2001	49.8441110913591
2002	49.8568482591547
2003	49.8699288510815
2004	49.8779304615814
2005	49.8824839188521
2006	49.8814300799517
2007	49.8813624186759
2008	49.8839107146962
2009	49.8854756130423
2010	49.8841537735124
2011	49.8962610995248
2012	49.9110170383943
2013	49.9176803934826
2014	49.9217709636096
2015	49.9244247330005
2016	49.9276750459361
2017	49.9264550366283
2018	49.9219282307518
2019	49.9177535776029
2020	49.9046381968615
2021	49.8886184655793
2022	49.875538745712
2023	49.8589641846663