Year	% of total labor force
1991	0.6128348554256838
1992	0.5722501501825562
1993	0.5817195215963034
1994	0.5352724550529743
1995	0.9867678755623386
1996	0.977601010571707
1997	0.9517845513994455
1998	0.912319879779286
1999	0.9872471522765172
2000	1.0284128322974726
2001	0.7130086055158111
2002	0.7410399851674647
2003	0.6873902890087441
2004	0.5939255981004615
2005	0.5867376779419895
2007	0.5664324241928078
2008	0.5724020104864406
2009	0.6257745542772589
2010	0.6326707881582281
2011	0.6754146160394697
2012	0.6650471669548922
2013	0.6415114966560682
2014	0.6051898780188237
2015	0.5894633541484189
2016	0.5320315019962581
2017	0.5094076549946613
2018	0.48895695037376347
2019	0.5111322258082049
2020	0.43972426913627116