Year	% of total labor force (modeled ILO estimate)
1991	3.6
1992	3.68
1993	3.881
1994	3.847
1995	3.659
1996	3.466
1997	3.336
1998	3.279
1999	3.215
2000	3.127
2001	2.994
2002	3.021
2003	3.051
2004	3.104
2005	3.192
2006	3.299
2007	3.024
2008	2.775
2009	2.5
2010	3.029
2011	3.47
2012	3.223
2013	2.93
2014	2.125
2015	2.162
2016	2.237
2017	2.313
2018	2.409
2019	2.518
2020	2.781
2021	2.806
2022	2.609
2023	2.607