Year	% of total labor force (modeled ILO estimate)
1991	13.387
1992	14.08
1993	12.741
1994	9.934
1995	8.782
1996	8.455
1997	9.751
1998	10.749
1999	11.183
2000	11.102
2001	11.812
2002	12.888
2003	13.505
2004	13.029
2005	11.342
2006	10.707
2007	9.379
2008	7.704
2009	9.534
2010	8.48
2011	7.139
2012	6.762
2013	6.137
2014	5.789
2015	5.176
2016	4.723
2017	4.14
2018	3.917
2019	3.731
2020	4.169
2021	4.812
2022	3.695
2023	3.389