Year	% of total labor force (modeled ILO estimate)
1991	4.056
1992	4.248
1993	4.27
1994	4.316
1995	4.21
1996	4.21
1997	4.251
1998	4.159
1999	4.198
2000	4.081
2001	4.161
2002	3.901
2003	3.879
2004	3.42
2005	3.724
2006	3.9
2007	4.018
2008	4.14
2009	4.282
2010	4.427
2011	4.554
2012	4.56
2013	4.538
2014	4.678
2015	4.621
2016	4.312
2017	3.848
2018	3.193
2019	3.204
2020	3.485
2021	3.516
2022	3.194
2023	3.174