Year	% of working-age population
1960	46.60923145769287
1961	46.29683271178788
1962	46.31012065695063
1963	46.31496996780719
1964	46.373460105859515
1965	46.67043093637784
1966	47.012854233308374
1967	47.21148193597036
1968	47.265544359725915
1969	47.18623158108736
1970	46.53864267532827
1971	45.869043736936675
1972	45.508066995044345
1973	44.97119585360919
1974	44.44635387074648
1975	44.06036588118554
1976	43.77841633792906
1977	43.44577390843748
1978	42.88064377336166
1979	42.09344622783041
1980	41.17891470924266
1981	40.21767610634091
1982	39.325131580624195
1983	38.48039548259713
1984	37.62940880399692
1985	36.7392490320954
1986	35.75307738780531
1987	34.675750009381076
1988	33.54748213550166
1989	32.35849256739814
1990	31.04525556544563
1991	29.694857733051954
1992	28.57220833345899
1993	27.77199497266348
1994	27.08025633310515
1995	26.400353907157896
1996	25.806615091093025
1997	25.31201182142489
1998	24.903424686161284
1999	24.59277044515281
2000	24.28337112884519
2001	24.063412253225035
2002	24.007042112576592
2003	23.9729338810239
2004	23.918037717770396
2005	23.83330629943206
2006	23.67854048221125
2007	23.464752738711674
2008	23.270209146847158
2009	23.109627800917075
2010	22.90804111533823
2011	22.688872551851183
2012	22.522703785600058
2013	22.358157895618476
2014	22.12315529019671
2015	21.828823003069264
2016	21.61726246723893
2017	21.479531943594342
2018	21.323349783865417
2019	21.17712162571898
2020	21.018783908668368
2021	20.817667998389524
2022	20.62334327132583
2023	20.438853672622955