Year	% of working-age population
1960	56.055541455648736
1961	56.41992006551033
1962	56.37985406449941
1963	56.152422934212254
1964	55.88159383094352
1965	55.56077423022754
1966	55.18646694312969
1967	54.85325142118366
1968	54.57588229583102
1969	54.17603327432295
1970	53.586600003704824
1971	52.949336787096726
1972	52.253050138444365
1973	51.34857216427038
1974	50.260980087096826
1975	49.17458524951894
1976	48.090882945067584
1977	46.84226744592534
1978	45.52623322652485
1979	44.288933514458634
1980	43.13853264904033
1981	42.07881542192267
1982	40.98906718566918
1983	39.849854711438006
1984	38.79154636816202
1985	37.87589994713084
1986	37.057054735168684
1987	36.293658494793476
1988	35.71440481936193
1989	35.41526129732639
1990	35.41198233035578
1991	35.3144218074323
1992	35.16765034075483
1993	35.224242279241814
1994	35.26226254487661
1995	35.25156931831891
1996	35.19527142599283
1997	35.13413426066336
1998	35.06962459086746
1999	34.95094102531127
2000	34.76018468331243
2001	34.44921695971359
2002	33.98550301001389
2003	33.45561793722849
2004	32.93317877426495
2005	32.41017419351083
2006	31.98510463070281
2007	31.762338928777794
2008	31.65998358740344
2009	31.591863797135307
2010	31.537655468673208
2011	31.48143473761264
2012	31.397078752160034
2013	31.211952981456243
2014	30.91987777024109
2015	30.615577810296625
2016	30.362369236305987
2017	30.176596262369777
2018	29.931406199436605
2019	29.510938902511953
2020	29.177002483000763
2021	28.9817718268184
2022	28.781440082368775
2023	28.59032500213609