Year	% of working-age population
1960	40.55262737581856
1961	41.369619878716165
1962	42.25429553264605
1963	43.08047155304972
1964	43.77096310493531
1965	44.16021541568496
1966	44.8503937007874
1967	46.1139896373057
1968	47.078570132462346
1969	47.228530574480615
1970	46.70094258783205
1971	45.80808080808081
1972	44.665908634873915
1973	43.348438760941086
1974	41.988567469253425
1975	40.647734008729856
1976	39.38720912624299
1977	38.191050158971194
1978	36.9977153608386
1979	35.70367225642114
1980	34.10411622276029
1981	32.19954648526077
1982	31.11428466805815
1983	30.715258142213848
1984	29.91734986336066
1985	28.684344722080574
1986	27.67318588923414
1987	27.01161132613567
1988	26.226677805625176
1989	25.373214047269325
1990	24.459046690110114
1991	23.619108815461036
1992	22.931363203050527
1993	22.3488511304508
1994	21.866922185578037
1995	21.475335450832954
1996	21.259056238978477
1997	21.222450405436877
1998	21.232211477555847
1999	21.24441823237004
2000	21.21740592103881
2001	21.173892563845257
2002	21.125109874011134
2003	21.029258098223615
2004	20.848883095548455
2005	20.510976403301484
2006	20.620593344459962
2007	21.196071553840756
2008	21.683069977426637
2009	22.11717412342738
2010	22.39857214140406
2011	22.588812714241197
2012	22.66539613395045
2013	22.532639104755983
2014	22.1515057435579
2015	21.559962008877516
2016	21.103292236304718
2017	20.377082120523557
2018	19.46966209372986
2019	18.860798380830186
2020	18.399928964659917
2021	18.060896315458294
2022	17.71153079097515
2023	17.24245523410009