Year	% of working-age population
1960	5.265958498756545
1961	5.273342689076338
1962	5.274473529109092
1963	5.2684063051062555
1964	5.261407333535614
1965	5.254757743145764
1966	5.244423190730015
1967	5.229522536482881
1968	5.210384246654512
1969	5.188296655946018
1970	5.238193114444222
1971	5.399921113951731
1972	5.583147704851562
1973	5.73009764529056
1974	5.840404229985987
1975	5.920017805945029
1976	5.981655090433511
1977	6.0352803438084495
1978	6.082961331091657
1979	6.128164021315934
1980	6.067452326606368
1981	5.91563863255821
1982	5.7886520784654705
1983	5.687993529887509
1984	5.6143947711447835
1985	5.5682293274873995
1986	5.551389749023043
1987	5.5634676019414036
1988	5.601326121648517
1989	5.662726752432379
1990	5.744024625565033
1991	5.839947678369625
1992	5.946501511090376
1993	6.062234264643486
1994	6.273729009176007
1995	6.565613986668377
1996	6.84573254433675
1997	7.11895501805166
1998	7.3826038492346004
1999	7.636175572447937
2000	7.881801845803506
2001	8.126934689240361
2002	8.301964698798406
2003	8.40346226700076
2004	8.489349972146371
2005	8.553330657262627
2006	8.601130042112953
2007	8.63392784373387
2008	8.655865444164514
2009	8.675227540122764
2010	8.709700955815675
2011	8.773342722804994
2012	8.876085897615456
2013	9.024139258664464
2014	9.192443361505736
2015	9.370578249779996
2016	9.571017869667624
2017	9.796288680235508
2018	10.051528640304191
2019	10.34575578588346
2020	10.64792918364417
2021	10.948324406662726
2022	11.306576057216027
2023	11.716968956416657