Year	% of total labor force
1991	0.8919055700598473
1992	0.8008888123064786
1993	0.7783481390917726
1994	0.7393119964692975
1995	1.0795083009455315
1996	1.0743294529379552
1997	1.033552616939984
1998	0.9962536801878279
1999	0.9630680185422021
2000	0.9523806362976511
2001	0.9387083432777267
2002	0.9196223353770904
2003	0.9086983532582478
2004	0.8800731281807267
2005	0.8583696486517102
2006	0.9544896628911934
2007	0.9532965683874856
2008	0.9327526327150073
2009	0.9309683023779453
2010	0.9094511260151784
2011	0.8998070751882268
2012	0.8874068764464901
2013	0.8811326653587758
2014	0.918199131106394
2015	0.9152232507138586
2016	0.9107545397902767
2017	0.9201872699957528
2018	0.9215357858879003
2019	0.902856012390371
2020	0.936033154485638