Year	% of total labor force (modeled ILO estimate)
1991	1.9
1992	2.9
1993	4.9
1994	7.3
1995	7.8
1996	10.7
1997	10.9
1998	13.3
1999	13.3
2000	12.286
2001	11.254
2002	10.224
2003	9.185
2004	8.126
2005	7.074
2006	6.026
2007	4.99
2008	4.89
2009	5.04
2010	5.36
2011	4.96
2012	4.87
2013	4.86
2014	5.09
2015	5.15
2016	5.16
2017	5.83
2018	5.391
2019	4.945
2020	5.293
2021	5.345
2022	4.535
2023	4.526