Year	% of working-age population
1960	80.7033465683494
1961	81.9143660109109
1962	83.0137278991507
1963	84.34620561134693
1964	85.94113482350562
1965	87.61261261261262
1966	87.52014408948715
1967	85.61379623326526
1968	83.59930615784909
1969	81.67067806456967
1970	79.80753936694767
1971	77.41487143849895
1972	74.22382135835899
1973	70.60868941783768
1974	66.68170774036793
1975	62.39694553318016
1976	57.729761631528895
1977	53.35859234523503
1978	49.674026014928664
1979	46.49753649355816
1980	43.49011588275392
1981	40.599977121940064
1982	38.118825657437036
1983	36.18435329861111
1984	34.909670563230605
1985	34.248225650158446
1986	34.0894901144641
1987	34.37145508920285
1988	34.97685599570365
1989	35.761099635325024
1990	36.70944322306867
1991	37.683329890518486
1992	38.53685282368606
1993	39.34810676925509
1994	40.122446825354935
1995	40.52978386926726
1996	40.54438618218229
1997	40.47280577054704
1998	40.3090588946414
1999	40.01680275145055
2000	39.49032932566649
2001	38.785896037804434
2002	38.03103208707511
2003	37.26847712234627
2004	36.505278116118554
2005	35.63833817401187
2006	34.683582616591416
2007	33.7832042582175
2008	33.013459935856964
2009	32.40661390331199
2010	31.796569664683478
2011	31.15531714101227
2012	30.62531017369727
2013	30.218014202068023
2014	29.911327588360187
2015	29.647913795263754
2016	29.41250125212862
2017	29.288241049700193
2018	29.34039601462984
2019	29.569539765845782
2020	29.812753036437243
2021	29.9891031651504
2022	30.17514297385621
2023	30.35247037094043