Year	% of working-age population
1960	6.75905173102211
1961	6.793781640141789
1962	6.8249907583063525
1963	6.85884963423012
1964	6.855007176043235
1965	6.806080607780022
1966	6.752695551090193
1967	6.698725964834054
1968	6.641572195065508
1969	6.578072108708508
1970	6.52882241858887
1971	6.5048731147969345
1972	6.4945924498017185
1973	6.4930070652435905
1974	6.494701736908551
1975	6.517292654840287
1976	6.566900194178878
1977	6.695479951207712
1978	7.0329982168391165
1979	7.461232990448748
1980	7.275415730908335
1981	6.897437043576406
1982	6.779706771768537
1983	6.701119445382757
1984	6.644305977803261
1985	6.553446109707052
1986	6.452754720988266
1987	6.397047098721936
1988	6.401367750185065
1989	6.380718530345868
1990	6.329883508494312
1991	6.2695983341488954
1992	6.24912027679319
1993	6.31713947249186
1994	6.389308628901865
1995	6.357593785656985
1996	6.233810890027379
1997	6.0760792093904765
1998	5.902408950513837
1999	5.736128674403678
2000	5.600283708239001
2001	5.491788460566898
2002	5.39439041702781
2003	5.316223853863691
2004	5.281972931075602
2005	5.290433259768225
2006	5.289092194080613
2007	5.293414955337914
2008	5.333811829484938
2009	5.3869456270895055
2010	5.456244785419799
2011	5.532949545532145
2012	5.5811613670026645
2013	5.583230749128321
2014	5.628656353450932
2015	5.733190321855586
2016	5.831596484203771
2017	5.91988681585432
2018	5.997981809668197
2019	6.0628233176506745
2020	6.0869027966785385
2021	6.033620527884171
2022	5.92719389909329
2023	5.840786940083562