Year	% of total population
1960	65.7430164791211
1961	65.1636395763732
1962	64.7380819689585
1963	64.3957884936551
1964	63.9488111458825
1965	63.4758609761251
1966	63.018255850175
1967	62.5723065400723
1968	62.1595811491207
1969	61.8006193708339
1970	61.5754315583144
1971	61.4848782906487
1972	61.5134464949111
1973	61.6450307208345
1974	61.7732481131937
1975	61.9134659623177
1976	62.2274984311189
1977	62.6529368554858
1978	63.1114332345403
1979	63.6088782469277
1980	64.1945945057884
1981	64.9365249259663
1982	65.7440694708655
1983	66.5619563678793
1984	67.2102003522495
1985	67.5391476205693
1986	67.6714528404875
1987	67.693853695526
1988	67.6322452429768
1989	67.5697747739796
1990	67.5340346039038
1991	67.4769051881999
1992	67.3943268535873
1993	67.2908193292392
1994	67.1663433251023
1995	67.0667902055485
1996	67.0512692759437
1997	67.1168266769322
1998	67.2202014026822
1999	67.3636200221576
2000	67.5406315654649
2001	67.742440241775
2002	67.9492627298059
2003	68.1176066217871
2004	68.0580119251521
2005	67.7924469625112
2006	67.5716353037917
2007	67.488536686341
2008	67.4887543839441
2009	67.4702447358007
2010	67.5393278996856
2011	67.6358963935966
2012	67.5770242287434
2013	67.4426817306931
2014	67.325788691884
2015	67.2484249494441
2016	67.1460203137726
2017	66.9851284956538
2018	66.8170708428951
2019	66.6448459474302
2020	66.4473526896778
2021	66.1733494491532
2022	65.8148777514741
2023	65.4231593051448