Year	% of total population
1960	61.2308588615347
1961	61.2211999167138
1962	61.3446508594778
1963	61.4912879698645
1964	61.632065050075
1965	61.8050005535043
1966	61.9976682690721
1967	62.2254471336113
1968	62.4698731294734
1969	62.6593791332224
1970	62.8032023254879
1971	62.94302601307
1972	63.0834427637524
1973	63.2695218424697
1974	63.5189263046785
1975	63.7952820777376
1976	64.0966188234396
1977	64.4086867349638
1978	64.6939095440325
1979	64.9373400841443
1980	65.1306820675721
1981	65.300125367945
1982	65.480716711568
1983	65.6914683383219
1984	65.9276794675251
1985	66.1768292993875
1986	66.4291461207413
1987	66.6493329427454
1988	66.7987824931564
1989	66.8826609308986
1990	66.891254066532
1991	66.8243550760026
1992	66.7351142768528
1993	66.6540056224905
1994	66.6015210802233
1995	66.5910274171542
1996	66.6164777205034
1997	66.6674361655209
1998	66.7310166341543
1999	66.8108610700721
2000	66.8942541322643
2001	66.9754211347926
2002	67.0753575557496
2003	67.1770910796026
2004	67.2639238755464
2005	67.3426010723274
2006	67.4071054764663
2007	67.4566104621477
2008	67.4949699671115
2009	67.4790793472402
2010	67.377439797511
2011	67.191656549791
2012	66.9387783654635
2013	66.6734972377616
2014	66.4238210999903
2015	66.1745696773414
2016	65.9349037679275
2017	65.7310259740886
2018	65.5510217889022
2019	65.3896077519692
2020	65.2246788528912
2021	65.057515523364
2022	64.9178689865597
2023	64.7857814737836