Year	% of working-age population
1960	80.69879206458724
1961	80.88540377137787
1962	81.45183526591366
1963	82.57582238081704
1964	83.52020714747638
1965	83.97956817403005
1966	84.23707675200524
1967	84.19364789375697
1968	84.06710158051781
1969	83.982421988506
1970	83.75882328517214
1971	83.53351488895194
1972	83.1598034550007
1973	82.75909593961434
1974	82.59456559996346
1975	82.45841014630078
1976	82.26685775093564
1977	81.57074824327219
1978	80.13358718804272
1979	78.71332741013255
1980	77.54303539435068
1981	76.48012753135013
1982	75.63430887778527
1983	74.74460128349318
1984	73.78113941193081
1985	72.92057651325501
1986	72.15911517874632
1987	71.5399808064842
1988	70.96581145842403
1989	70.46999424781052
1990	70.11190761467283
1991	69.71954911741449
1992	69.31534620545813
1993	68.93622550945938
1994	68.41491034396844
1995	67.75011575053995
1996	67.00603520258557
1997	66.14545570778836
1998	65.2603410272827
1999	64.40082530949294
2000	63.528589184532116
2001	62.63602424082845
2002	61.73610940521325
2003	60.86926349497138
2004	60.01277179372187
2005	59.15949119066617
2006	58.42504358735557
2007	57.84839418349417
2008	57.35952387364053
2009	56.93627575438032
2010	56.5658340649217
2011	56.263770060339176
2012	56.064322535175336
2013	55.9442046991913
2014	55.87453575226827
2015	55.83796145362959
2016	55.809913665500105
2017	55.82075856793921
2018	55.83303589245096
2019	55.803475372070764
2020	55.70998676574854
2021	55.51593003977724
2022	55.325852673232845
2023	55.12579399304523