Year	% of total labor force (modeled ILO estimate)
1991	0.9
1992	1.8
1993	4.5
1994	6.3
1995	7.2
1996	8.1
1997	9.1
1998	10
1999	10.9
2000	11.78
2001	10.91
2002	10.04
2003	9.17
2004	7.99
2005	7.26
2006	6.62
2007	6.33
2008	5.86
2009	5.74
2010	5.63
2011	5.42
2012	5.19
2013	4.97
2014	4.91
2015	4.96
2016	5
2017	5
2018	4.9
2019	5
2020	7.24
2021	6.04
2022	5.65
2023	5.636