Year	% of working-age population
1960	6.720393415354324
1961	6.584243089147362
1962	6.528951784933018
1963	6.5134820333524965
1964	6.489407166409263
1965	6.472632731573612
1966	6.487331222649331
1967	6.5154723045682745
1968	6.554346686760234
1969	6.601237269725949
1970	6.641475658846825
1971	6.688611996014918
1972	6.7255501440257435
1973	6.775673190185826
1974	6.87609819453664
1975	6.990204169702613
1976	7.095168125033138
1977	7.161049966759948
1978	7.181305605998743
1979	7.216765707327356
1980	7.261519236557703
1981	7.293981755928184
1982	7.330593919518463
1983	7.349462856540577
1984	7.3586068134351414
1985	7.388530807972477
1986	7.432174574566772
1987	7.484766536374365
1988	7.552851331259052
1989	7.655540823504081
1990	7.783395912353551
1991	7.90361523824153
1992	8.036234440908329
1993	8.205165084056006
1994	8.377504627809222
1995	8.550676289758773
1996	8.718752937484027
1997	8.87793721944016
1998	9.072438198048976
1999	9.282928434450222
2000	9.47608157844637
2001	9.656084665396264
2002	9.814125068313107
2003	9.956252469273503
2004	10.075644952908299
2005	10.18301227673006
2006	10.317755428114735
2007	10.465928093432101
2008	10.60526267272512
2009	10.756409881564693
2010	10.936635586810258
2011	11.160386030118266
2012	11.434256262590944
2013	11.761812859674267
2014	12.150348938358496
2015	12.626334686163178
2016	13.16118050332326
2017	13.777275196266723
2018	14.449500567933319
2019	15.129743299520603
2020	15.836871155255498
2021	16.481975182585717
2022	17.147331146244962
2023	17.80389410795432