Year	% of total population
1960	56.3891769892793
1961	56.5600417719994
1962	56.6564174937635
1963	56.6030630611956
1964	56.3654998599832
1965	56.0822170045162
1966	55.85448756607
1967	55.6621245992066
1968	55.4978353243808
1969	55.3479706941309
1970	55.2107260490438
1971	55.086057468403
1972	54.9647803465682
1973	54.8437370127171
1974	54.5704012748275
1975	54.1580397742569
1976	53.7611895656633
1977	53.3745747268895
1978	52.9991500414578
1979	52.6358150340572
1980	52.2804175703518
1981	51.91971148798
1982	51.5736614115834
1983	51.2411964860105
1984	51.0499231024305
1985	51.0013627997152
1986	50.947209161061
1987	50.8907480075267
1988	50.8409855157535
1989	50.801764872986
1990	50.7666376293645
1991	50.7300634219814
1992	50.6926081430862
1993	50.651176465805
1994	50.5997889512452
1995	50.5477780743056
1996	50.515687178966
1997	50.506984803364
1998	50.5116912170796
1999	50.5446835264472
2000	50.6182440963341
2001	50.7208255503145
2002	50.8474286774765
2003	50.9532599056221
2004	51.0201739831599
2005	51.08159757355
2006	51.1426441044029
2007	51.2053628468961
2008	51.2715584896032
2009	51.3293087392226
2010	51.3773986656515
2011	51.4311044073402
2012	51.5120227227957
2013	51.6453833988393
2014	51.8323276316926
2015	52.0466940818198
2016	52.2865365199591
2017	52.555191613911
2018	52.8666532647038
2019	53.2227383216479
2020	53.6196068756932
2021	54.0612568849268
2022	54.5179549680856
2023	54.9747076268008