Year	% of total labor force (modeled ILO estimate)
1991	3.329
1992	3.292
1993	3.257
1994	3.278
1995	3.3
1996	3.315
1997	3.346
1998	3.408
1999	3.66
2000	3.596
2001	3.483
2002	3.326
2003	3.409
2004	3.498
2005	3.448
2006	3.46
2007	3.409
2008	3.367
2009	3.295
2010	3.301
2011	3.533
2012	3.767
2013	4.011
2014	4.228
2015	4.45
2016	4.657
2017	4.212
2018	3.732
2019	3.129
2020	2.792
2021	2.344
2022	1.537
2023	1.523