Year	% of working-age population
1960	85.8938601702639
1961	86.61945468307773
1962	87.27081316243371
1963	87.60605529253608
1964	87.60037223991702
1965	87.47177001070347
1966	87.30810268086496
1967	87.10596780731822
1968	86.86464352403218
1969	86.57209228807893
1970	86.20484537247467
1971	85.73726068642509
1972	85.17746169853251
1973	84.5439044380713
1974	83.83768846844791
1975	83.05231086250214
1976	82.17081481032675
1977	81.19916575066651
1978	80.17016400528694
1979	79.09363977298737
1980	77.97971747325411
1981	76.86377933257359
1982	75.74789375259628
1983	74.62556459372858
1984	73.50999686062869
1985	72.42066287274788
1986	71.37283227505236
1987	70.34957572369373
1988	69.35357414791247
1989	68.39742832699123
1990	67.47335764607763
1991	66.59020882368907
1992	65.77669949077408
1993	65.02146886217662
1994	64.2794553237239
1995	63.52190945942786
1996	62.74158019493568
1997	61.94084376916082
1998	61.12081937870874
1999	60.269425169193866
2000	59.36510592950339
2001	58.39630324108293
2002	57.37769263769975
2003	56.334086041545284
2004	55.286850143431735
2005	54.2483382608816
2006	53.22343888669728
2007	52.23012151761131
2008	51.2801160769212
2009	50.369180303385306
2010	49.49681737826229
2011	48.66583994521923
2012	47.84346608742835
2013	46.97966799825824
2014	46.063379918493666
2015	45.10891455203006
2016	44.13018363888989
2017	43.1432008335111
2018	42.05964153025371
2019	41.00809778776141
2020	40.157078622052026
2021	39.38655612040909
2022	38.64874885840322
2023	37.94693334956873