Year	% of total labor force (modeled ILO estimate)
1991	2.675
1992	2.631
1993	2.593
1994	2.576
1995	2.573
1996	2.623
1997	2.608
1998	2.608
1999	2.566
2000	2.605
2001	2.746
2002	2.748
2003	2.807
2004	2.971
2005	3.06
2006	2.95
2007	2.825
2008	2.874
2009	3.209
2010	3.497
2011	3.171
2012	2.765
2013	3.017
2014	2.717
2015	2.506
2016	2.583
2017	2.462
2018	2.283
2019	2.193
2020	2.953
2021	2.174
2022	3.051
2023	2.705