Year	% of working-age population
1960	72.62688373628326
1961	76.92018501028207
1962	80.8116618152863
1963	84.12868841740894
1964	86.68596997116437
1965	88.49122191447344
1966	89.87677920066783
1967	90.7050881819317
1968	91.01021474305139
1969	90.92851959311429
1970	90.60322825297325
1971	90.04203176491568
1972	89.15400789203977
1973	87.96373731177334
1974	86.58823705836483
1975	85.12257156712501
1976	83.65560495429253
1977	82.27560782558436
1978	81.10092341827911
1979	80.27173362826619
1980	79.77798749994217
1981	79.48581944580938
1982	79.30661789520667
1983	79.23935809347083
1984	79.3038832285297
1985	79.30819403428522
1986	79.38098860907112
1987	79.72218402906614
1988	80.21947624520638
1989	80.89362281212995
1990	81.95112323136401
1991	83.07209560290043
1992	84.5613887931533
1993	86.47453229024474
1994	87.65502811411075
1995	88.08613446208969
1996	87.9485539181353
1997	86.62519720446367
1998	84.30128449819537
1999	81.53470413170857
2000	78.9403520522972
2001	76.6627498742052
2002	74.28177682618339
2003	71.95439475549313
2004	69.73895624446669
2005	67.6289066578848
2006	65.73871358540364
2007	64.21712769988632
2008	63.05222763118004
2009	62.0856102269444
2010	61.2798489197513
2011	60.80989117962717
2012	60.62044024325781
2013	60.508412472224116
2014	60.5385359138527
2015	60.63973862439474
2016	60.661178296851446
2017	60.610311064558154
2018	60.57465350834038
2019	60.57786430778648
2020	60.5521317941997
2021	60.42188724303872
2022	60.19033698643887
2023	59.835607549369165