Year	% of total labor force (modeled ILO estimate)
1991	3.77
1992	3.882
1993	3.897
1994	3.796
1995	3.71
1996	3.637
1997	3.618
1998	3.712
1999	3.758
2000	3.77
2001	3.698
2002	3.615
2003	3.527
2004	3.554
2005	3.795
2006	4.052
2007	3.434
2008	3.72
2009	3.858
2010	3.605
2011	3.592
2012	3.504
2013	3.497
2014	3.6
2015	3.068
2016	2.695
2017	2.552
2018	2.338
2019	2.237
2020	2.522
2021	3.398
2022	2.598
2023	2.233