Year	% of working-age population
1960	50.32711862598719
1961	51.44388017487752
1962	52.09668013046201
1963	52.17191379129841
1964	51.707478290026174
1965	50.98626608089969
1966	50.17097424889408
1967	49.22663990172896
1968	48.15069060007221
1969	46.92761462088416
1970	45.61225054836066
1971	44.27560034802129
1972	42.905547923997666
1973	41.49647069609293
1974	40.110331654806956
1975	38.77207359297979
1976	37.4969939430996
1977	36.35254463001327
1978	35.41406446502379
1979	34.75530478000109
1980	34.3478011478517
1981	34.093031545069394
1982	33.964231007517476
1983	33.984034872583734
1984	34.0886602523452
1985	34.181859432334356
1986	34.31431216926512
1987	34.479200877448456
1988	34.67126922045598
1989	34.846733326631856
1990	34.9039817875916
1991	34.826566036929044
1992	34.61220487294215
1993	34.233284295751545
1994	33.67199449742532
1995	32.94780595640617
1996	32.06678522798075
1997	31.010740530361257
1998	29.80428188675681
1999	28.572166982715892
2000	27.38858119548669
2001	26.186730962346257
2002	25.000696032319595
2003	23.906639343216877
2004	22.922332568786217
2005	22.12080543305078
2006	21.51499203100968
2007	21.090253871992047
2008	20.870334118129264
2009	20.887566256701966
2010	21.095345961515733
2011	21.445728688706723
2012	21.94931497338823
2013	22.542286445805207
2014	23.139787082820657
2015	23.697616214209454
2016	24.21033085857351
2017	24.62703800777991
2018	24.89800082882187
2019	25.104072779772775
2020	25.282025303489014
2021	25.388516981983976
2022	25.40266207562873
2023	25.314560227516353