Year	% of total labor force (modeled ILO estimate)
1991	22.308
1992	22.94
1993	24.54
1994	22.98
1995	19.66
1996	14.71
1997	14.61
1998	12.4
1999	10.61
2000	9.35
2001	9.85
2002	10.32
2003	11
2004	9.57
2005	9.08
2006	8.73
2007	7.41
2008	8.12
2009	10.02
2010	10.69
2011	11.19
2012	11.59
2013	11.55
2014	12.17
2015	9.803
2016	8.247
2017	8.622
2018	8.322
2019	8.413
2020	9.756
2021	9.417
2022	8.493
2023	7.954