Year	% of working-age population
1960	54.42427366793092
1961	54.0052327873553
1962	53.07598678490697
1963	51.967627718765804
1964	50.94432100379035
1965	50.05233609287277
1966	49.275766880679875
1967	48.551866214251085
1968	47.74745441629173
1969	46.85411785125401
1970	45.77765221076423
1971	44.532420891892656
1972	43.16048405338159
1973	41.65348994804608
1974	40.11670519253538
1975	38.6194082373807
1976	37.21137261447727
1977	35.89052399944987
1978	34.62835999564697
1979	33.416787810262214
1980	32.35185672899657
1981	31.495653079285752
1982	30.747067297797905
1983	30.05636520591073
1984	29.410437659798465
1985	28.796057844690964
1986	28.20769945702685
1987	27.712620607936543
1988	27.36625514403292
1989	27.150983645413607
1990	27.07373271889401
1991	27.14211323612952
1992	27.312712148013578
1993	27.490106327182566
1994	27.618369526521896
1995	27.668264123326804
1996	27.642028100183264
1997	27.534265799691255
1998	27.334015250139483
1999	27.09244475297929
2000	26.83912135331788
2001	26.53881984049442
2002	26.175906063001015
2003	25.794799308967715
2004	25.386175690435326
2005	24.907622524615554
2006	24.372256365232662
2007	23.870518015074282
2008	23.508262762339996
2009	23.230842209668374
2010	23.030989844396984
2011	22.910360370313086
2012	22.76057460324487
2013	22.551889302820648
2014	22.264176087777358
2015	21.918722334675355
2016	21.74748068145872
2017	21.883637368711994
2018	22.13855771688861
2019	22.381231671554254
2020	22.604265402843602
2021	22.773582644132805
2022	22.663823187281892
2023	22.283618581907092