Year	% of total labor force (modeled ILO estimate)
1991	2.86
1992	2.919
1993	2.872
1994	2.932
1995	2.84
1996	2.826
1997	2.76
1998	2.751
1999	2.665
2000	2.648
2001	2.68
2002	2.808
2003	2.774
2004	2.77
2005	2.685
2006	2.755
2007	2.796
2008	2.813
2009	2.807
2010	2.798
2011	2.853
2012	3.887
2013	4.989
2014	5.842
2015	6.757
2016	4.455
2017	4.078
2018	3.567
2019	2.863
2020	3.405
2021	3.368
2022	2.968
2023	2.93