Year	% of working-age population
1960	5.756845665570125
1961	6.029902675255066
1962	6.481369392053845
1963	6.9291182026046325
1964	7.37350622934147
1965	7.796144678204995
1966	8.193017941106937
1967	8.56545223469604
1968	8.918567294161377
1969	9.25272568108868
1970	9.397748101597276
1971	9.39386189258312
1972	9.419058094190582
1973	9.454074273280689
1974	9.478287885667854
1975	9.453595259203956
1976	9.382457894856469
1977	9.275182917394284
1978	9.161403960991537
1979	9.091288907457699
1980	9.109245752006846
1981	9.227947040995375
1982	9.264011597155562
1983	9.173251108113318
1984	9.07303423893521
1985	9.003155745312789
1986	8.938700322821864
1987	8.852716498893411
1988	8.778685810869678
1989	8.713410483321987
1990	8.660277528202057
1991	8.66697071375053
1992	8.702380192712655
1993	8.718316893494817
1994	8.714357636505103
1995	8.683080958626446
1996	8.624654344345801
1997	8.53303407815674
1998	8.400637251506545
1999	8.2457798784605
2000	8.073160133257838
2001	7.904270078618776
2002	7.765873660786839
2003	7.6571872647351675
2004	7.562876372653206
2005	7.463286833819778
2006	7.351163831692033
2007	7.229967057180881
2008	7.097330254631354
2009	6.949506276671961
2010	6.79616569390402
2011	6.637789513241955
2012	6.53830881427174
2013	6.510424100558552
2014	6.5039206706730095
2015	6.524770642201835
2016	6.5724235361870225
2017	6.649675012567356
2018	6.750241913187725
2019	6.8499175371083005
2020	6.813975106738292
2021	6.690272826598401
2022	6.6236965649742015
2023	6.593092234032944