Year	% of total employment (modeled ILO estimate)
1991	3.1689016050452916
1992	3.195016951081547
1993	3.2066285199546734
1994	3.227004094380816
1995	3.292374513178676
1996	3.318289998677291
1997	3.3468653823587595
1998	3.3947115159219283
1999	3.5406609685697092
2000	3.5257130733010333
2001	3.6684745276907833
2002	3.722867909546769
2003	3.7391801472782444
2004	3.798030630299834
2005	3.8182279823947116
2006	3.861012853545587
2007	3.971263982190484
2008	3.9540477677650516
2009	3.9988431118978354
2010	3.9320777186206195
2011	3.921835437305431
2012	3.9242142582428805
2013	3.930492552990987
2014	3.885079770679508
2015	3.89703018591283
2016	3.872906412372572
2017	3.838607565155568
2018	3.8014691497830424
2019	3.709714474202133
2020	3.6634276737014515
2021	3.5943820407831226
2022	3.5313274768132854
