Year	% of working-age population
1960	57.119817933362256
1961	57.30598519931552
1962	56.96240832340951
1963	56.37530980386069
1964	55.748914193244055
1965	55.07996366904468
1966	54.290656540814375
1967	53.47520820748871
1968	52.74060579452841
1969	52.06767885985198
1970	51.401338710013285
1971	50.88098864767781
1972	50.672789298704956
1973	50.734671561889854
1974	51.12439883036817
1975	51.784883078907356
1976	52.574213243958134
1977	53.37639794324627
1978	54.013988039437834
1979	54.55055346395707
1980	54.82593009846109
1981	54.72068914299702
1982	54.15795453000931
1983	53.236102086234915
1984	52.66675153582312
1985	52.54829442411932
1986	52.5723895621782
1987	52.64153343401901
1988	52.65795721076714
1989	52.478137571576724
1990	52.095581950956834
1991	51.62977693471078
1992	51.11360164348849
1993	50.586454592441285
1994	50.03931801784963
1995	49.49990294984344
1996	48.97347780886964
1997	48.41998601037878
1998	47.808633752014146
1999	47.133844303672475
2000	46.40902537840519
2001	45.69392135801052
2002	45.05190056339144
2003	44.442683356442444
2004	43.904819919721824
2005	43.490481454366424
2006	43.20813082855477
2007	43.05598396186245
2008	43.05436114892067
2009	43.22110866350938
2010	43.470308531386976
2011	43.888566709842785
2012	44.548128255919146
2013	45.3344746368469
2014	46.23714056042648
2015	47.21984294206802
2016	48.298752240880205
2017	49.480631552017535
2018	50.69460377283693
2019	51.90579477666137
2020	53.01095710781449
2021	53.83883827077096
2022	53.20665007758928
2023	52.9041722935808