Year	% of total labor force (modeled ILO estimate)
1991	11.1
1992	15.3
1993	16.4
1994	12.8
1995	11.1
1996	12.5
1997	13.7
1998	12.2
1999	14.1
2000	16.218
2001	19.921
2002	18.11
2003	13.733
2004	12.037
2005	10.083
2006	8.951
2007	6.878
2008	5.61
2009	6.817
2010	10.279
2011	11.26
2012	12.27
2013	12.941
2014	11.424
2015	9.143
2016	7.575
2017	6.164
2018	5.212
2019	4.23
2020	5.125
2021	5.267
2022	4.268
2023	4.295