Year	% of working-age population
1960	32.87220695486365
1961	33.100206810993846
1962	33.23803121924934
1963	33.20660567898301
1964	33.01435279212332
1965	32.756555935418845
1966	32.53701237713774
1967	32.39650112434159
1968	32.36329801262157
1969	32.31745445971851
1970	32.223773692404855
1971	32.1775387673553
1972	32.08935488583187
1973	31.86898135601899
1974	31.584107157988882
1975	31.279160937416666
1976	30.946946700943005
1977	30.64638957785657
1978	30.421937054750835
1979	30.29722557211488
1980	30.293859505582944
1981	30.328458275554105
1982	30.371957639626597
1983	30.518469880859982
1984	30.716023050116576
1985	30.852909651519983
1986	30.990130230325036
1987	31.195935430163956
1988	31.44541394725153
1989	31.65358576914949
1990	31.80407122389028
1991	31.910280140354065
1992	31.93266292006971
1993	31.821739148411122
1994	31.536402720820213
1995	31.056388737604312
1996	30.377919315370335
1997	29.523061075997614
1998	28.462373716765484
1999	27.30088431986474
2000	26.217583310977176
2001	25.14676439756045
2002	24.07306263150826
2003	23.1716673393258
2004	22.430627445947295
2005	21.776110785218016
2006	21.275979202680816
2007	20.964452126507208
2008	20.880416599028866
2009	20.958360863283843
2010	21.08671153201035
2011	21.307894635697185
2012	21.664255120196945
2013	22.137682467477767
2014	22.60544021942096
2015	23.028218818244696
2016	23.50909267600493
2017	24.00433025589628
2018	24.360303260020796
2019	24.65269040667336
2020	24.86155517940359
2021	24.899190906085412
2022	24.863202141154307
2023	24.765408034407105