Year	% of total population
1960	54.167016485819
1961	54.3346201406171
1962	54.4247005828985
1963	54.5295048307539
1964	54.5710668497831
1965	54.5348501714216
1966	54.4893925250575
1967	54.4479783791591
1968	54.4210586896807
1969	54.3941661652855
1970	54.3603759184899
1971	54.4203204654021
1972	54.5990597635539
1973	54.8143253322576
1974	55.0147513563815
1975	55.1912060395614
1976	55.3406693908428
1977	55.5989792218428
1978	55.9823332448809
1979	56.3335240442355
1980	56.640252333485
1981	56.8207096841596
1982	56.9168086271807
1983	57.0775334804365
1984	57.2957067393969
1985	57.561761094522
1986	57.823884043715
1987	57.9547066940577
1988	57.932999041313
1989	57.8154560418969
1990	57.6416341316685
1991	57.3635643369245
1992	57.0346644834367
1993	56.8348445444087
1994	56.8527075847067
1995	57.0697416482904
1996	57.4278272386705
1997	58.0199301321274
1998	58.8092582277437
1999	59.6676297668517
2000	60.6024322315221
2001	61.5738304068494
2002	62.5324379904042
2003	63.4286145375061
2004	64.2051093878662
2005	64.8268924665598
2006	65.3260726897627
2007	65.729679145238
2008	65.9946675038067
2009	66.1864283910941
2010	66.3706857217115
2011	66.4838512195417
2012	66.4661568654967
2013	66.3437293683795
2014	66.2573972148977
2015	66.2924375154179
2016	66.0639011648476
2017	65.6765698126556
2018	65.4643459101196
2019	65.3046922416707
2020	65.2597929763407
2021	65.3549069655631
2022	65.556213580433
2023	65.8489462325965