Year	% of working-age population
1960	78.63491695879345
1961	79.49473481653038
1962	80.4029035975338
1963	81.15245940468985
1964	81.77195183261883
1965	82.43991012194375
1966	83.09785684783773
1967	83.7523456635431
1968	84.41088851959925
1969	85.07821441116815
1970	85.74021610497947
1971	86.39793585525211
1972	87.06535694181599
1973	87.70299502205715
1974	88.29299259219006
1975	88.89683950831441
1976	89.44013160065424
1977	89.82066422789987
1978	90.00705916526215
1979	89.93133451970986
1980	89.58571875790675
1981	89.04492826171698
1982	88.39653461210033
1983	87.62458281843244
1984	86.99008218611391
1985	86.62978240345277
1986	86.32977912069553
1987	85.99520577840981
1988	85.653275184424
1989	85.23015312677231
1990	84.67831469872492
1991	84.07378541897282
1992	83.5118491975067
1993	82.84469639546138
1994	82.25449052128519
1995	81.83919090348974
1996	81.40984730258977
1997	81.66389186021242
1998	81.74366555106177
1999	80.96123871696179
2000	78.74925440211578
2001	76.84437813498482
2002	76.64957973134943
2003	76.081175009642
2004	75.01890206238545
2005	73.98775256195412
2006	73.04178496712493
2007	72.39814279035933
2008	72.35648394881994
2009	71.899864945885
2010	71.55918316135866
2011	72.15547817624567
2012	73.07037206088934
2013	74.16684437494077
2014	75.06030881017257
2015	75.74009125415168
2016	76.09251972961947
2017	76.10046630000052
2018	75.90611083416692
2019	75.48287383318902
2020	74.84127529059897
2021	74.03516717477044
2022	73.0069343062432
2023	71.73449104526138