Year	% of total employment (modeled ILO estimate)
1991	22.3718445475204
1992	22.6848271803862
1993	23.1301862303306
1994	23.2902482367968
1995	23.111998597391
1996	22.1870683757374
1997	21.4630238101468
1998	20.8002448994292
1999	19.9526360616839
2000	19.3689032092221
2001	18.7379047437264
2002	18.3063075149867
2003	17.8442139990702
2004	19.9990109938299
2005	22.4583933443506
2006	23.374809590315
2007	24.2258591982676
2008	25.1418291796542
2009	24.4907483398201
2010	24.1670003899982
2011	24.3543581467098
2012	24.7010088972446
2013	24.7956479031951
2014	24.8429258360305
2015	24.916374152044
2016	25.1005434137358
2017	25.2343579164562
2018	25.1119589674328
2019	24.9222158903787
2020	24.9395010343755
2021	25.2533208928593
2022	25.1586587791191
