Year	% of working-age population
1960	5.91733169209222
1961	5.978464740816954
1962	6.0715362535209225
1963	6.18206573177442
1964	6.2786715867698115
1965	6.344167225149526
1966	6.3858020162740825
1967	6.406614140864943
1968	6.418634989462713
1969	6.436480263790209
1970	6.460239406251391
1971	6.483226426013223
1972	6.524596476060756
1973	6.590642558470967
1974	6.661210570320544
1975	6.731799528230763
1976	6.800015624739405
1977	6.856482144764591
1978	6.89746602309246
1979	6.9266834486983555
1980	6.943391219423264
1981	6.951938768673284
1982	6.956069590461255
1983	6.95641953249926
1984	6.9570738601241615
1985	6.9578820444852125
1986	6.958522160626377
1987	6.958961550001079
1988	6.958048170553628
1989	6.957746229768141
1990	6.962199614501334
1991	6.973336796266982
1992	6.992300349173784
1993	7.014979035872575
1994	7.03810338838027
1995	7.063968171394735
1996	7.091249018422421
1997	7.121749571260021
1998	7.1592857296437336
1999	7.204095943463971
2000	7.249423165307238
2001	7.2946850250869995
2002	7.347527874215377
2003	7.403989286270665
2004	7.453938817722899
2005	7.497005579815756
2006	7.538050540741553
2007	7.579192910891251
2008	7.621391116549729
2009	7.664739226730544
2010	7.712803308219605
2011	7.77164464788981
2012	7.848254816699058
2013	7.945386757185327
2014	8.091762531367776
2015	8.289998469702793
2016	8.50628397805856
2017	8.736127883966166
2018	8.980441402981858
2019	9.234124068316923
2020	9.458943553788828
2021	9.597855210444902
2022	9.701014369597004
2023	9.905559267353047