Year	% of working-age population
1960	4.349838770302083
1961	4.379021089813764
1962	4.408238099160736
1963	4.441192515944223
1964	4.474990729677393
1965	4.506104006466724
1966	4.535998270353376
1967	4.5651228128522785
1968	4.593178744704682
1969	4.618630346399077
1970	4.639245091860116
1971	4.654078728560205
1972	4.665228595437823
1973	4.674785679538621
1974	4.685093049819466
1975	4.697047708522093
1976	4.741052290716368
1977	4.790125004427043
1978	4.800912644471625
1979	4.794586178268767
1980	4.787248439451832
1981	4.788380117895401
1982	4.799797187078627
1983	4.820759541205798
1984	4.857482740765239
1985	4.909610734307999
1986	4.969322194824815
1987	5.038328429278408
1988	5.1108492570246415
1989	5.172400582597715
1990	5.219501168010535
1991	5.2475318162869575
1992	5.254824564089687
1993	5.247584578223153
1994	5.230500632369461
1995	5.205838377680036
1996	5.176512851247576
1997	5.143792282236223
1998	5.0943956162293125
1999	5.0262931053505815
2000	4.96133229836477
2001	4.909879541884797
2002	4.885836186343621
2003	4.875716468142294
2004	4.853625347984102
2005	4.824195125970755
2006	4.792563917785446
2007	4.762926519563578
2008	4.737599904161421
2009	4.716979588646281
2010	4.698137551264747
2011	4.655627686908778
2012	4.590466144971526
2013	4.523991836810691
2014	4.459789856953803
2015	4.409006497204048
2016	4.376088710097684
2017	4.358381658087483
2018	4.351465368677536
2019	4.352588533793248
2020	4.341740460790484
2021	4.306684659721066
2022	4.268691265945219
2023	4.257300334040231