Year	% of working-age population
1960	61.14404918752745
1961	61.468736803857446
1962	61.51581264239101
1963	61.33394018698678
1964	61.004370873244675
1965	60.4817103176773
1966	59.85110200583809
1967	59.17838897053678
1968	58.18765393956558
1969	56.971960090227846
1970	55.70083158000201
1971	54.377959747434886
1972	53.15560916767189
1973	52.1049939002794
1974	50.89661552694472
1975	49.467153725395484
1976	48.24117991998278
1977	47.06041723110268
1978	45.78068966512493
1979	44.745406227350884
1980	43.96035168281347
1981	43.18022174781351
1982	42.52461345874074
1983	42.123182708580416
1984	41.706186075574706
1985	41.195156880614505
1986	40.652367379051505
1987	39.93962887646162
1988	39.24761649738765
1989	38.899768559729395
1990	38.75948210205636
1991	38.54696481776868
1992	38.552066351726026
1993	38.69851895140106
1994	38.47355579350173
1995	37.96549700466586
1996	37.44887776233134
1997	36.92668534677083
1998	36.38420113781519
1999	35.982349745556945
2000	35.744072311252786
2001	35.53863948139979
2002	35.248075141369284
2003	34.7714210387556
2004	34.171074001582475
2005	33.30178357886167
2006	32.20342321403951
2007	31.308636092912444
2008	30.90920116052354
2009	31.02962510320507
2010	31.243189930490324
2011	31.20076289618693
2012	31.095969370779464
2013	31.01058109926123
2014	30.857817805994394
2015	30.50729705147015
2016	30.015401520337214
2017	29.405988769413526
2018	28.721329032422577
2019	28.209767169728327
2020	28.042241481560254
2021	28.036069229650458
2022	27.929584762085565
2023	27.757853579614398