Year	% of total labor force (modeled ILO estimate)
1991	20.6
1992	24.38
1993	26.23
1994	27.74
1995	31.84
1996	28.315
1997	25.43
1998	26.855
1999	28.545
2000	29.77
2001	27.3
2002	25.9
2003	23.72
2004	17.65
2005	15.27
2006	12.27
2007	13.79
2008	11.33
2009	10.16
2010	9.96
2011	9.96
2012	10.97
2013	9.82
2014	10.207
2015	11.206
2016	10.202
2017	12
2018	12.15
2019	12.285
2020	14.04
2021	13.607
2022	12.437
2023	11.814