Year	% of working-age population
1960	12.785464244040673
1961	12.180496976472382
1962	11.173322762857993
1963	10.277741669916374
1964	9.497159688617716
1965	8.759842519685039
1966	8.035912214586565
1967	7.410735888838961
1968	6.8966559835520345
1969	6.4764117028925385
1970	6.192039931695784
1971	6.158567044886891
1972	6.289125380075121
1973	6.4201261971370815
1974	6.562871040637328
1975	6.714658968409128
1976	6.891089108910892
1977	7.104515314177455
1978	7.320223912731448
1979	7.5669362402449165
1980	7.6834920367405415
1981	7.6687014796629285
1982	7.712313530489401
1983	7.801086043053849
1984	7.907400597931222
1985	8.058289294642575
1986	8.237692066478521
1987	8.433115861918628
1988	8.691403220302176
1989	9.004137161628213
1990	9.314634698032119
1991	9.73636008767979
1992	10.241171275019086
1993	10.694237085697223
1994	11.14766789239404
1995	11.499955701249224
1996	11.712066800969314
1997	11.925333025110527
1998	12.187862222921824
1999	12.491664183657543
2000	12.880241548620125
2001	13.38082700944711
2002	13.964033523788133
2003	14.611757133061865
2004	15.33135095140372
2005	16.053698004428416
2006	16.77977415586583
2007	17.61793502447708
2008	18.57880885076518
2009	19.672841663753932
2010	20.876988200880366
2011	22.164021688350296
2012	23.490890413890515
2013	24.81645697175597
2014	26.08822033282465
2015	27.272860685930645
2016	28.373292238390185
2017	29.38914737960234
2018	30.358140869749107
2019	31.31262295831999
2020	32.155727353928604
2021	32.928573649678164
2022	33.8008260958334
2023	34.78847741853522