Year	% of total labor force (modeled ILO estimate)
1991	2.68
1992	2.747
1993	2.7
1994	2.664
1995	2.588
1996	2.371
1997	2.176
1998	2.038
1999	2.021
2000	2.035
2001	2.125
2002	2.211
2003	2.406
2004	2.412
2005	2.403
2006	2.274
2007	2.223
2008	2.211
2009	2.236
2010	2.266
2011	2.208
2012	2.138
2013	2.072
2014	2.079
2015	2.553
2016	3.081
2017	3.066
2018	3.057
2019	3.072
2020	4.092
2021	3.792
2022	2.99
2023	2.939