Year	% of working-age population
1960	64.8600897910566
1961	65.10058697619839
1962	65.40361904874774
1963	66.03182728706017
1964	66.5584102200576
1965	66.80267501925073
1966	66.87424341110457
1967	66.7180069469801
1968	66.54174019443158
1969	66.37858980081982
1970	66.11069296080908
1971	65.82104894565727
1972	65.43852132558641
1973	65.01762543219654
1974	64.73774385153203
1975	64.46554627930492
1976	64.14807184852967
1977	63.503681136101186
1978	62.35651975843667
1979	61.204930953762485
1980	60.23914986605085
1981	59.374387284999656
1982	58.67396099210531
1983	57.92360663125702
1984	57.108772056194546
1985	56.36967326312941
1986	55.71047772678851
1987	55.178463578855954
1988	54.70327139418163
1989	54.28447285876089
1990	53.98353059690915
1991	53.65657757468482
1992	53.30173553246901
1993	52.94309648834396
1994	52.46984738550289
1995	51.878933997632615
1996	51.20907463113983
1997	50.43741636640925
1998	49.63811751650108
1999	48.85278932889839
2000	48.05073720738185
2001	47.21775688338352
2002	46.354905200526275
2003	45.521643443932234
2004	44.716473514875545
2005	43.913515275702494
2006	43.213570142794964
2007	42.66450519715883
2008	42.21372718676078
2009	41.836731701892774
2010	41.50313362561404
2011	41.23052421135164
2012	41.034717744983396
2013	40.887145033985206
2014	40.75290915708524
2015	40.60249986139049
2016	40.44194320388144
2017	40.298136971290134
2018	40.12098807924167
2019	39.891465253439634
2020	39.611436404237644
2021	39.29078241308592
2022	38.93888377208823
2023	38.52347828552943