Year	% of working-age population
1960	5.208138056588928
1961	5.161379514318424
1962	5.109841799245962
1963	5.068678454332132
1964	5.055342694969083
1965	5.066191098006095
1966	5.0874306107415705
1967	5.1306297335194415
1968	5.198203467496438
1969	5.2660102415109415
1970	5.326912654647518
1971	5.38781686151698
1972	5.439511859400118
1973	5.473591339941717
1974	5.487083541425278
1975	5.487316204210826
1976	5.501000667888315
1977	5.517995942231947
1978	5.523488723613109
1979	5.526136887202271
1980	5.527301446743332
1981	5.528185055545578
1982	5.522566827470333
1983	5.468085415171334
1984	5.373432201583964
1985	5.299664532337734
1986	5.251849222332885
1987	5.247880940461236
1988	5.280878631929911
1989	5.300340793185102
1990	5.3021212800400095
1991	5.332966842251511
1992	5.354408833626038
1993	5.3367846586637
1994	5.318499574645736
1995	5.273142946067113
1996	5.232500340956898
1997	5.245356004864079
1998	5.277465949969136
1999	5.282770918791343
2000	5.290057130093348
2001	5.305317245812533
2002	5.303072913420504
2003	5.295925958054493
2004	5.293262260163916
2005	5.294432554055607
2006	5.292397485385847
2007	5.286778307766461
2008	5.286025317831148
2009	5.29903088154369
2010	5.320816206362825
2011	5.347266511277326
2012	5.3770822294548495
2013	5.400575757150779
2014	5.41470015687182
2015	5.429656198288408
2016	5.447336581232555
2017	5.466116675819918
2018	5.491192220518867
2019	5.521899532067196
2020	5.53443920054347
2021	5.515621345431683
2022	5.487921613460334
2023	5.487333438069635