Year	% of total population
1960	64.3395751336617
1961	64.0902750502838
1962	63.9160118823494
1963	63.7701738702076
1964	63.5907008708763
1965	63.384350177365
1966	63.1915257737731
1967	63.0359257230737
1968	62.9792228209924
1969	62.9788836646824
1970	62.9891905768349
1971	63.0250677734564
1972	63.1029737436932
1973	63.252047187597
1974	63.4889070638521
1975	63.7760071909158
1976	64.1020492376506
1977	64.4048737767877
1978	64.6801436969868
1979	64.9819675933792
1980	65.3404768986586
1981	65.8033249348066
1982	66.3307580110968
1983	66.8683484734049
1984	67.2702999549455
1985	67.4220053581109
1986	67.443282464326
1987	67.4230015964794
1988	67.3240256725276
1989	67.1632819001788
1990	66.9484913516013
1991	66.7081486361866
1992	66.4992954094038
1993	66.3358618904704
1994	66.2093455059209
1995	66.0796747126703
1996	65.9444992331746
1997	65.8178475406757
1998	65.7172582424121
1999	65.6470779361615
2000	65.5902460386527
2001	65.5604325646988
2002	65.5641986241509
2003	65.5833297805187
2004	65.6013618763098
2005	65.6702191447011
2006	65.8344888842693
2007	66.000523855734
2008	66.0471154452117
2009	65.9786342576509
2010	65.8685074430178
2011	65.6775476422524
2012	65.4350667943235
2013	65.2151841572252
2014	64.994520307965
2015	64.8056304668522
2016	64.6467616920489
2017	64.4724517511303
2018	64.288182773162
2019	64.1139125367228
2020	63.9988837297645
2021	63.8948192337724
2022	63.7372908039084
2023	63.5672257905519