Year	% of working-age population
1960	5.7132494576238955
1961	5.833851729347428
1962	6.033515031067544
1963	6.253678172233752
1964	6.492166650192745
1965	6.743697393937677
1966	7.010951127954238
1967	7.289776342191553
1968	7.561808890471471
1969	7.802756003719018
1970	7.882986116245028
1971	7.838502081744301
1972	7.7943548103128935
1973	7.746270607088082
1974	7.722880913753445
1975	7.709407469444372
1976	7.677575935399099
1977	7.641831427216396
1978	7.630961000481176
1979	7.650115773573921
1980	7.681874463123414
1981	7.720849326490418
1982	7.772045028142589
1983	7.832948530239891
1984	7.890865133626838
1985	7.932237211217702
1986	7.96743640135386
1987	7.994602390946884
1988	8.006822909886045
1989	8.01575994138518
1990	8.023210551567436
1991	8.032879688492109
1992	8.028937679259403
1993	8.00700289975401
1994	7.972360863176557
1995	7.932316433910483
1996	7.8940837103012935
1997	7.842202264955693
1998	7.797857721476714
1999	7.75400061641755
2000	7.709867436087981
2001	7.696277894376151
2002	7.724469860929001
2003	7.777466484041009
2004	7.866539370086806
2005	8.009961035250637
2006	8.183218825749401
2007	8.389534738990815
2008	8.633070040507857
2009	8.940754993153597
2010	9.306798693823854
2011	9.712563632978915
2012	10.175558852313857
2013	10.693596867627049
2014	11.263448850936353
2015	11.885626352970178
2016	12.541017168099744
2017	13.203765242952157
2018	13.734786107026196
2019	14.420746644633239
2020	15.292606649919504
2021	15.949153468153114
2022	16.583876930023
2023	17.305264504621796