Year	% of working-age population
1960	5.408740359897172
1961	5.247495288165856
1962	5.010000952471664
1963	4.850985786336543
1964	4.789729969012837
1965	4.758237056054771
1966	4.766246684350133
1967	4.839617332583005
1968	4.915861639139919
1969	4.9291528489599035
1970	4.903319956220358
1971	4.8688873139617295
1972	4.83681777409784
1973	4.8375159792774
1974	4.843155269720436
1975	4.840048528191048
1976	4.85809889701326
1977	4.911331529906823
1978	5
1979	5.069385443217219
1980	5.074920704363994
1981	5.1033252910940945
1982	5.164012658863716
1983	5.225927529955247
1984	5.293493798127911
1985	5.332272184639873
1986	5.346232179226069
1987	5.365515554287112
1988	5.425231445159265
1989	5.498035066505441
1990	5.571030640668524
1991	5.641374861116089
1992	5.71809911840118
1993	5.777242210363229
1994	5.808302396220047
1995	5.794367781859095
1996	5.741642323920805
1997	5.6763554168921715
1998	5.602074611010435
1999	5.548054498588438
2000	5.612631451344061
2001	5.776826363554135
2002	5.949230028873917
2003	6.134950902375304
2004	6.302659590417078
2005	6.409451173919544
2006	6.469500924214418
2007	6.518056174765939
2008	6.535152773657668
2009	6.5150930515567955
2010	6.581722058867208
2011	6.740571224774869
2012	6.932967393574177
2013	7.186186186186186
2014	7.46901796806351
2015	7.786558843349875
2016	8.149274103486785
2017	8.539156152660226
2018	8.952934786081732
2019	9.392067620286086
2020	9.876093294460642
2021	10.42519365422995
2022	11.074761527600813
2023	11.784206302125137