Year	% of total labor force (modeled ILO estimate)
1991	10.304
1992	30.007
1993	25.251
1994	20.835
1995	14.607
1996	13.928
1997	16.872
1998	20.042
1999	20.835
2000	19.023
2001	18.57
2002	17.891
2003	16.985
2004	16.306
2005	15.966
2006	15.626
2007	15.966
2008	13.06
2009	13.674
2010	14.086
2011	13.481
2012	13.376
2013	15.866
2014	18.055
2015	17.193
2016	15.418
2017	13.616
2018	12.304
2019	11.466
2020	12.79
2021	12.473
2022	11.588
2023	11.584