Year	% of total labor force
1992	0.21334061535967097
1993	0.21308831018839136
1994	0.21116143009782407
1995	1.245597160038475
1996	1.593072372261017
1997	0.6777557248763594
1998	0.6654054406680149
1999	0.6524292114305598
2000	0.4482802847575987
2001	0.43353906367605
2002	0.41932237504193226
2003	0.40590638896656234
2004	0.6519368772984171
2005	0.6927650812293702
2006	0.8903450977598917
2007	0.878268385386234
2008	0.8678694315965735
2009	0.8152930978686838
2010	0.7960636362526403
2011	0.7780433308082725
2012	0.7611007477931581
2013	0.7442732057993038
2014	0.7278530612026187
2015	0.711685349498633
2016	0.6955640085311139
2017	0.7153795235656535
2018	0.6979274462876284
2019	0.6968706817075956
2020	0.6880045197849864