Year	% of total employment (modeled ILO estimate)
1991	3.53790168531548
1992	3.56328033585739
1993	3.59630446783856
1994	3.63336177850539
1995	3.67489498046475
1996	3.71838380334653
1997	3.76125433232668
1998	3.80655650256783
1999	3.85452985340016
2000	3.90685744629333
2001	3.96332407720866
2002	4.01542574957225
2003	4.06520468310007
2004	4.11238618797512
2005	4.14949609938792
2006	4.18131302914126
2007	4.20767213921841
2008	4.22940975637351
2009	4.24112229884118
2010	4.25143950985255
2011	4.25471877162749
2012	4.24893042454123
2013	4.23670052762045
2014	4.21870471027293
2015	4.19227171041194
2016	4.16276409039282
2017	4.13108632323267
2018	4.0934700524094
2019	4.06037421655952
2020	4.02158686402308
2021	3.98499801866008
2022	3.9410743669091