Year	% of total employment (modeled ILO estimate)
1991	0.00860765097204973
1992	0.0106618017260272
1993	0.77761983826463
1994	0.452485979518426
1995	2.63409932469941
1996	2.68141464826788
1997	1.90647884668634
1998	1.6598718695399
1999	1.7318621030798
2000	2.35122232058962
2001	0.773540880736081
2002	1.43092668056117
2003	1.48341420563875
2004	2.81323341705439
2005	2.81510012341256
2006	2.64750156396622
2007	2.94726227114242
2008	2.41632108656958
2009	2.82144439521489
2010	3.2245743032376
2011	2.65744464012349
2012	3.16928836812848
2013	2.68203638151036
2014	2.43576426018148
2015	3.59433870033766
2016	3.91700449948768
2017	3.39913298719478
2018	2.94131927585489
2019	3.28272493676746
2020	3.3960630183526
2021	3.47722696935589
2022	3.29444726981146