Year	% of working-age population
1960	85.07478186651815
1961	84.62644824147928
1962	83.93356936822894
1963	83.17617760556568
1964	82.61303393212897
1965	82.12537233031244
1966	81.51720335779807
1967	80.88628433941065
1968	80.24037295600374
1969	79.5140745577251
1970	78.71232405220765
1971	77.84044173664188
1972	76.8657173264339
1973	75.74199760842009
1974	74.48293690149511
1975	73.24020650556433
1976	72.17123092261487
1977	71.25935337040653
1978	70.49250905608866
1979	69.89229019432483
1980	69.39136228622107
1981	68.94878253176435
1982	68.38237884405541
1983	67.61386486559103
1984	66.80457249892598
1985	65.97299890797582
1986	65.09279770055751
1987	64.15694252977559
1988	63.1805115780798
1989	62.2877984528259
1990	61.46104942169871
1991	60.59677515430724
1992	59.7089591738701
1993	58.69461792186171
1994	57.47948986834381
1995	56.208806025481074
1996	54.950603565067816
1997	53.80031551821416
1998	52.84793025954209
1999	52.05033789941248
2000	51.3720887992269
2001	50.7824715533716
2002	50.32312770661095
2003	50.00554462819557
2004	49.750274465668795
2005	49.54822430987783
2006	49.40713718139892
2007	49.3614889659253
2008	49.40530692040238
2009	49.507098648080586
2010	49.612839777703364
2011	49.716084995284895
2012	50.0241056221706
2013	50.521471175610344
2014	51.024819188663116
2015	51.45569753235223
2016	51.76123269359684
2017	52.00654339896287
2018	52.23323058234234
2019	52.3877020475503
2020	52.41623434898263
2021	52.37236957190626
2022	52.333652523648944
2023	52.27952845520141