Year	% of total labor force
1992	1.2091517603562443
1993	1.2127944968236912
1994	1.293143468836665
1995	3.171889101544262
1996	2.7235259500111204
1997	2.589337607641337
1998	2.0917449160877863
1999	2.0096510592447028
2000	2.040529459997657
2001	2.0561273184251907
2002	2.0713997953808976
2003	1.9495695398298252
2004	1.9688393497579906
2005	1.9923726144982525
2006	2.0030113565858527
2007	2.058615821868475
2008	2.0359736684049414
2009	1.9785914186988238
2010	1.9539805856266295
2011	1.9174192449462724
2012	1.8798919916601158
2013	1.8506056527590848
2014	1.8085030317528554
2015	1.7712412240346735
2016	1.7227979247380116
2017	1.693683675244004
2018	1.663777642158075
2019	1.5794511099207442
2020	1.5874828909999399