Year	% of total population
1960	59.7475615229089
1961	59.5748369148663
1962	59.3104149379511
1963	58.9678598538523
1964	58.6183795423248
1965	58.3139751583206
1966	58.0196865310941
1967	57.7252967105979
1968	57.4594639290428
1969	57.2384792782813
1970	57.0692673898493
1971	56.9259078110045
1972	56.8282751709688
1973	56.8130938052996
1974	56.8959627617049
1975	57.1157776167454
1976	57.5042584717914
1977	58.0837691588011
1978	58.8520455657411
1979	59.7686826751195
1980	60.781725594389
1981	61.9333150260893
1982	63.0891480157509
1983	64.0964544314562
1984	65.0227672854876
1985	65.9019033762242
1986	66.7403238538886
1987	67.4967536271741
1988	68.1036317628246
1989	68.5369415400334
1990	68.8061558266552
1991	68.9666105770757
1992	69.0678973581356
1993	69.1138281996736
1994	69.0692006255232
1995	68.9404434256152
1996	68.7859589195725
1997	68.7046769500521
1998	68.7308258890579
1999	68.7991326541973
2000	68.8907615855548
2001	68.9823628009628
2002	69.0689192018908
2003	69.1946901287831
2004	69.3708080442789
2005	69.5518025159624
2006	69.7072321886076
2007	69.7917689857937
2008	69.7835581600816
2009	69.7085751939723
2010	69.5949773336548
2011	69.4635374541192
2012	69.3456176294003
2013	69.2605877121651
2014	69.2118911481495
2015	69.164716178123
2016	69.1092933559448
2017	69.0426947519959
2018	68.9120396771115
2019	68.7455522024471
2020	68.5876660008081
2021	68.5302525302889
2022	68.4704666554467
2023	68.3261498623112