Year	% of working-age population
1960	80.6415364091228
1961	81.2062683774068
1962	81.65588462340207
1963	81.96122967658104
1964	82.08655256431331
1965	82.06822194814065
1966	81.9602842629065
1967	81.74321032666198
1968	81.40929996517029
1969	80.97584474695212
1970	80.44947596116923
1971	79.78549537197907
1972	78.99604510555086
1973	78.15511167678763
1974	77.26964613164346
1975	76.3467672082524
1976	75.40946159279942
1977	74.4476441205355
1978	73.46149077053362
1979	72.46916605133246
1980	71.48008283770272
1981	70.51259509404778
1982	69.60033254249494
1983	68.7374093383816
1984	67.88661630725163
1985	67.02664408072738
1986	66.13838112703453
1987	65.22024353358309
1988	64.28702317407087
1989	63.350091148887564
1990	62.39179125544186
1991	61.407495112563545
1992	60.414709866182406
1993	59.41718434291467
1994	58.41019634402619
1995	57.39727674664195
1996	56.36950648649587
1997	55.31549360257923
1998	54.25716595714738
1999	53.20903125968515
2000	52.1769940975986
2001	51.16183348887622
2002	50.14993729250632
2003	49.1378857167432
2004	48.13339130888424
2005	47.14971490300863
2006	46.188514606986956
2007	45.249791917226986
2008	44.328403441029444
2009	43.42416153741071
2010	42.54153878496386
2011	41.69458952973912
2012	40.88033211802667
2013	40.07507485899024
2014	39.302116259341375
2015	38.57827942783321
2016	37.887367658436474
2017	37.223610131340074
2018	36.590077435605004
2019	35.97949095725508
2020	35.398348493883574
2021	34.85111397239506
2022	34.327265150730504
2023	33.81082284945913