Year	% of working-age population
1960	5.252570406794814
1961	5.224521100783405
1962	5.212053771739326
1963	5.211576563826776
1964	5.223985149381808
1965	4.987885081343026
1966	4.4627817949808595
1967	4.0736970344286645
1968	4.019452649444326
1969	4.134613853186169
1970	4.252577319587629
1971	4.363526478809398
1972	4.469749218600966
1973	4.569835104642395
1974	4.669271444547225
1975	4.785711405878321
1976	4.918870074254508
1977	5.057046338198738
1978	5.103168983465633
1979	5.062248704161217
1980	5.032565041751563
1981	4.999257083423816
1982	4.951438032271282
1983	4.890704231391846
1984	4.841086961034648
1985	4.880458009111801
1986	4.997742131820234
1987	5.111066486894824
1988	5.200160090842245
1989	5.285318459225992
1990	5.408786194381557
1991	5.561412079294475
1992	5.704093879183891
1993	5.820769841141321
1994	5.923982625497789
1995	6.021662185359037
1996	6.132673165801173
1997	6.277976249311626
1998	6.434053671547548
1999	6.588235294117648
2000	6.731332841719137
2001	6.861866950711727
2002	7.006699076550905
2003	7.155284784809984
2004	7.287222581340229
2005	7.391755788599315
2006	7.344862262160114
2007	7.122073336478149
2008	6.864951272893813
2009	6.62779405574149
2010	6.4095761530663955
2011	6.208021384317412
2012	6.029624277456647
2013	5.878272451060642
2014	5.783234715310862
2015	5.737552569817443
2016	5.708788648559275
2017	5.69697702608931
2018	5.711856803442566
2019	5.784647094660057
2020	5.938250410751148
2021	6.162096371504661
2022	6.504491406615089
2023	6.9736962818311685