Year	% of working-age population
1960	69.66363927556155
1961	72.10859360712037
1962	73.78054669379289
1963	75.05812280645067
1964	76.02938924311866
1965	76.26689868360333
1966	75.89680268066076
1967	75.35989701564664
1968	74.67423086286284
1969	73.97499164210048
1970	73.3629306264005
1971	72.88565032295506
1972	72.43955891336101
1973	71.80193613941397
1974	70.95594700130906
1975	70.00446135763298
1976	69.05807912692498
1977	68.12349651563623
1978	67.18618212635444
1979	66.30360484585836
1980	65.46184738955823
1981	64.77572156810646
1982	64.32796549179238
1983	64.07002168595426
1984	63.918887792180946
1985	63.86388498135699
1986	63.980664022192315
1987	64.23540385479559
1988	64.57961316977767
1989	65.00061290886548
1990	65.55952886113468
1991	66.09371873123875
1992	66.750259026325
1993	67.78529365326264
1994	68.296188437167
1995	68.07043337010799
1996	67.44661177067228
1997	66.23890759516104
1998	64.63836619281727
1999	62.759027710863855
2000	60.7824969497997
2001	58.77588641687173
2002	56.71902569121492
2003	54.71867264593722
2004	52.811462890509034
2005	51.10202012061003
2006	49.6615377171336
2007	48.54859904150414
2008	47.76114089486665
2009	47.25397822865356
2010	47.095472644585094
2011	47.353599246430484
2012	47.995453268437046
2013	48.8684414874023
2014	49.86580992939768
2015	50.97805604458431
2016	52.09556505545048
2017	53.141559327301394
2018	54.21544458978755
2019	55.240760081877816
2020	55.96917693573914
2021	56.360574560985235
2022	56.45803455423588
2023	56.274070413316245