Year	% of working-age population
1960	81.41842193918406
1961	82.29093088381207
1962	83.1689130384958
1963	84.03259428578461
1964	84.69159303218512
1965	85.08916935707668
1966	85.3942042187362
1967	85.61599271780865
1968	85.71989277794951
1969	85.71454958962167
1970	85.6186581680917
1971	85.46731773924057
1972	85.26005242406674
1973	84.99376771410846
1974	84.67905823270027
1975	84.30296775487349
1976	83.92246875239812
1977	83.5011591598963
1978	83.01791922031622
1979	82.5303467170759
1980	82.02122666016759
1981	81.48630554889634
1982	80.99088690580314
1983	80.51529268776002
1984	80.05097055439282
1985	79.58827680680542
1986	79.08523958364884
1987	78.5689884123257
1988	78.03883654581591
1989	77.47916979655584
1990	76.87207445114257
1991	76.21743846048327
1992	75.62030607317666
1993	75.00985234557537
1994	74.27694931041137
1995	73.40651325289156
1996	72.45350533214086
1997	71.43427271323615
1998	70.34725059285823
1999	69.24386959687594
2000	68.15844886204155
2001	67.11213034604592
2002	66.1381206805232
2003	65.19071071410642
2004	64.22863890906788
2005	63.27769740894514
2006	62.331143690001284
2007	61.40168813227499
2008	60.53955686281699
2009	59.72368624360111
2010	58.92726248194573
2011	58.199764769742394
2012	57.546104100281696
2013	56.94388066969581
2014	56.39137921629314
2015	55.86210042580389
2016	55.33111603554135
2017	54.80653169514216
2018	54.32166658333306
2019	53.86541555227633
2020	53.38647921622029
2021	52.866543569265076
2022	52.33068218306895
2023	51.84757825575283