Year	% of total population
1960	63.8343973035119
1961	63.4152495540215
1962	63.1584177764617
1963	63.0371761914409
1964	63.0067271864793
1965	63.0597144972878
1966	62.8378887462994
1967	62.317606557377
1968	61.8884319188252
1969	61.619026842919
1970	61.7461490140512
1971	62.1551857351133
1972	62.560336432395
1973	62.9641801457576
1974	63.377458390623
1975	63.8021696792158
1976	64.2141877148919
1977	64.6143510496941
1978	64.9808978657983
1979	65.2845148167907
1980	65.5376227434822
1981	65.7600127984117
1982	65.9609591846021
1983	66.135178344405
1984	66.2593766748906
1985	66.3388786422288
1986	66.4018556728636
1987	66.4523389710073
1988	66.4732740278068
1989	66.4007856789156
1990	66.1592108739547
1991	65.8059859955801
1992	65.4214305175616
1993	65.0183490586368
1994	64.6678923782787
1995	64.4334207520139
1996	64.313055418804
1997	64.2822183122875
1998	64.3443095517113
1999	64.5247622568253
2000	64.7615617846127
2001	64.9864645312086
2002	65.1883251633937
2003	65.3391281774502
2004	65.4853599130278
2005	65.7077187702709
2006	66.030833524515
2007	66.4802665219154
2008	67.0335594376728
2009	67.5529372734148
2010	67.8862060903907
2011	67.9791279291575
2012	67.8583182015563
2013	67.5625276923209
2014	67.1463886059029
2015	66.668085338832
2016	66.1667254468843
2017	65.695299451205
2018	65.2713114591134
2019	64.8941785857444
2020	64.5913526391482
2021	64.348945444095
2022	64.1272780273292
2023	63.9333344419762