Year	% of working-age population
1960	79.99815198931978
1961	80.52272990929356
1962	81.03473238351945
1963	81.61938105431193
1964	82.15373403171142
1965	82.54986889947993
1966	82.92853423292883
1967	83.30627571164307
1968	83.72583167567946
1969	84.19389272535098
1970	84.69779700580757
1971	85.28317558527596
1972	85.9313039562685
1973	86.69980827235231
1974	87.53791290601276
1975	88.31453788241399
1976	89.33113364216415
1977	90.42705707646286
1978	92.61010672824202
1979	94.52456151855996
1980	95.57031745501887
1981	97.4669174545447
1982	97.83527338306418
1983	96.49993563145543
1984	95.05181797847752
1985	93.40526055211686
1986	91.51427088372486
1987	89.55860154801326
1988	87.36010618077793
1989	82.02606718394712
1990	78.09695180424312
1991	77.69033917460153
1992	77.51889382393406
1993	77.40930766127269
1994	77.33091622630145
1995	77.15543542105053
1996	76.82794633336692
1997	76.53988980170338
1998	76.31390697079227
1999	76.03700860719955
2000	75.62720763532855
2001	74.97083590758947
2002	74.00284954479568
2003	72.7708799144754
2004	71.33256155312101
2005	69.55389710973581
2006	67.58464141538735
2007	65.78091998033567
2008	64.250202499325
2009	63.036806062059746
2010	62.17937027474092
2011	61.6746863222849
2012	61.37639842438013
2013	61.103152839738605
2014	60.818921002270855
2015	60.5936187482238
2016	60.48929163113481
2017	60.49022839352376
2018	60.54151165754262
2019	60.58165309558131
2020	60.57793272016661
2021	60.57960452832983
2022	60.61311304300235
2023	60.526531926989556