Year	% of working-age population
1960	5.632518162723943
1961	5.711433382497208
1962	5.774233909275736
1963	5.834053979328139
1964	5.89263850858759
1965	5.938288753435236
1966	5.965495515665715
1967	5.977282514313146
1968	5.97080244336704
1969	5.943650776629797
1970	5.902443827572454
1971	5.838520292319056
1972	5.735369744762466
1973	5.609091664397531
1974	5.478360467397091
1975	5.343647904520139
1976	5.206587038795432
1977	5.067226938971803
1978	4.929359769117625
1979	4.800652251905983
1980	4.679352094712
1981	4.568496615431915
1982	4.470997938302198
1983	4.37919979519105
1984	4.295878901479742
1985	4.229431744038796
1986	4.1802628212825725
1987	4.139015255898842
1988	4.1049838095369955
1989	4.087108735035259
1990	4.083815605010025
1991	4.104688872913171
1992	4.140775164865789
1993	4.18755470766975
1994	4.2540634359898135
1995	4.331984950520808
1996	4.4161180117939605
1997	4.503324242674868
1998	4.586573205142938
1999	4.667865194725423
2000	4.745733838068848
2001	4.818198526552194
2002	4.884550221073808
2003	4.943270496601296
2004	4.99083459880497
2005	5.022378662301713
2006	5.040344183749947
2007	5.046725665978602
2008	5.0455202873761245
2009	5.039956618160254
2010	5.030766964335576
2011	5.017616914024768
2012	5.002792331952176
2013	4.9807744803765575
2014	4.94741317021014
2015	4.9267543139928485
2016	4.920860892093329
2017	4.920022912208098
2018	4.932187254494201
2019	4.953994604999372
2020	4.970832018076651
2021	4.967733786871629
2022	4.963379458221418
2023	4.9926902116250105