Year	% of working-age population
1960	5.052404575551528
1961	4.954620272592578
1962	4.914647534938651
1963	4.909030168384238
1964	4.90677385713815
1965	4.894197539658384
1966	4.867691232592849
1967	4.827758417010028
1968	4.794333600659453
1969	4.8000247446453175
1970	4.849506470302133
1971	4.941760040152602
1972	5.075986688966671
1973	5.22372960130135
1974	5.352001408748782
1975	5.449143534848787
1976	5.518113213985209
1977	5.556240607860028
1978	5.577099978890762
1979	5.608125909420774
1980	5.65623321448675
1981	5.7246949985780695
1982	5.813978520698609
1983	5.906170465301462
1984	5.985805470918927
1985	6.048986818652067
1986	6.093668806128042
1987	6.119259953304181
1988	6.132925599534198
1989	6.149368309265898
1990	6.175209243339841
1991	6.213765428408421
1992	6.263502242321301
1993	6.316834602244151
1994	6.3669227695974895
1995	6.41449397077757
1996	6.452849215485662
1997	6.469923710752639
1998	6.47803388121836
1999	6.502252336392762
2000	6.5737115545198215
2001	6.689914594350322
2002	6.8260096266655745
2003	6.9605848742317695
2004	7.068824524918578
2005	7.154022548574458
2006	7.23206940000615
2007	7.312482660314903
2008	7.403734080302438
2009	7.513317814726435
2010	7.622943809911065
2011	7.742113464344332
2012	7.8963856561351715
2013	8.078678390962256
2014	8.28770591325656
2015	8.523052038811239
2016	8.781560850702158
2017	9.065421394974427
2018	9.378253623010794
2019	9.711240210878556
2020	10.058239439753786
2021	10.389317176621422
2022	10.744811430093968
2023	11.156231888827186