Year	% of working-age population
1960	9.108129214388354
1961	9.371541418376083
1962	9.613334258414765
1963	9.82575259762929
1964	9.997672629647518
1965	10.143594006037375
1966	10.319634411509918
1967	10.497232911618251
1968	10.614442651135949
1969	10.66029683960071
1970	10.65555767379269
1971	10.600160445091875
1972	10.455633562775427
1973	10.285499056281537
1974	10.146015432089403
1975	10.054558519549735
1976	10.051760771931791
1977	10.070148075225909
1978	10.06641784846001
1979	10.104763922224883
1980	10.137368416144337
1981	10.124765902577572
1982	10.108845237941203
1983	10.085045661752995
1984	10.06040168984612
1985	10.046566540158151
1986	10.04752576960864
1987	10.060479986334496
1988	10.06400591396113
1989	10.054180072382643
1990	10.035144416411445
1991	10.005892823749326
1992	9.961657455254732
1993	9.915060793692485
1994	9.887469618391552
1995	9.87718824109043
1996	9.882026036894292
1997	9.903133016061549
1998	9.926775427223397
1999	9.936665907236167
2000	9.93180222397576
2001	9.910304611938091
2002	9.868165924254557
2003	9.809865324326873
2004	9.743216312096003
2005	9.671439413085594
2006	9.594608410029458
2007	9.518734948417109
2008	9.452299948839945
2009	9.399477205672587
2010	9.368608959590636
2011	9.371786613320197
2012	9.41077674601097
2013	9.501941966990945
2014	9.741815072208123
2015	10.09783051373121
2016	10.41241622276119
2017	10.772644389082371
2018	11.206266337135325
2019	11.689520580207658
2020	12.235010906911858
2021	12.740779097367877
2022	13.310807284289922
2023	13.98553525776474