Year	% of total labor force (modeled ILO estimate)
1991	13.635
1992	13.645
1993	14.393
1994	14.825
1995	13.695
1996	12.684
1997	10.964
1998	9.935
1999	12.29
2000	16.314
2001	18.373
2002	19.895
2003	19.37
2004	19.074
2005	17.746
2006	13.841
2007	9.602
2008	7.118
2009	8.167
2010	9.637
2011	9.632
2012	10.088
2013	10.326
2014	8.99
2015	7.501
2016	6.161
2017	4.888
2018	3.846
2019	3.277
2020	3.162
2021	3.363
2022	2.886
2023	2.905