Year	% of total labor force
1991	0.40641072274050877
1992	0.3976696558169129
1993	0.3916868385388514
1994	0.3786896203068522
1995	1.2657415135700332
1996	1.2372930896284355
1997	1.2086687827128832
1998	1.2667567091030163
1999	1.2683487790029087
2000	1.2397431913303933
2001	0.44226551328188857
2002	0.43308583279999613
2003	0.42199170708148975
2004	0.30148450972589025
2005	0.4416850579417182
2006	0.43551667520763254
2007	0.5790547221188771
2008	0.5737810738312796
2009	0.5853033118688505
2010	0.5978376024107731
2011	0.600353096561978
2012	0.5843152474539004
2013	0.5829284019989407
2014	0.5720597541131802
2015	0.5811475727403045
2016	0.5835810550857288
2017	0.5793952562013398
2018	0.5821273953464305
2019	0.7193188913281792
2020	0.7430171250586983