Year	% of working-age population
1960	10.548233197465171
1961	10.199298222310775
1962	9.847769605811745
1963	9.51267708769465
1964	9.238033942054837
1965	9.04076501380817
1966	8.917209657343008
1967	8.868892515067493
1968	8.872914234254988
1969	8.901261999409794
1970	8.945522902647838
1971	8.992086914856447
1972	9.028749535403856
1973	9.052658029053788
1974	9.069074333800842
1975	9.074817115011106
1976	9.067181320097253
1977	9.027851404362492
1978	8.93623966399584
1979	8.8368985521848
1980	8.725890929857806
1981	8.549139341621792
1982	8.348665930572576
1983	8.188714034643398
1984	8.05453092587959
1985	7.934296423654342
1986	7.851442917942208
1987	7.825149682847453
1988	7.8622078816221075
1989	7.950860286398262
1990	8.188537398059843
1991	8.589226636918788
1992	9.33528952724435
1993	10.367214957493761
1994	11.30817131427472
1995	12.073283641930486
1996	12.641093823356773
1997	13.142083162173027
1998	13.550711445596015
1999	13.85462712193778
2000	14.182533856386506
2001	14.64644867341039
2002	15.186561106755676
2003	15.71362398710141
2004	16.140535166896257
2005	16.419837910119167
2006	16.495522572441086
2007	16.26933118415167
2008	15.769445576025193
2009	15.191943780980957
2010	14.760080497339265
2011	14.581610336145264
2012	14.606292648855106
2013	14.731745033606805
2014	14.93996660864623
2015	15.284067779043944
2016	15.77663234571324
2017	16.373388005397096
2018	17.031283775607406
2019	17.768589629069247
2020	18.450743267344627
2021	19.07080227206322
2022	19.80940738778016
2023	20.78468383148894