Year	% (modeled ILO estimate)
1991	12.68
1992	14.246
1993	11.205
1994	11.215
1995	10.296
1996	11.996
1997	10.981
1998	10.576
1999	13.772
2000	10.676
2001	9.563
2002	13.351
2003	12.906
2004	10.973
2005	10.761
2006	10.105
2007	11.029
2008	10.168
2009	10.308
2010	9.201
2011	8.759
2012	8.114
2013	9.723
2014	10.663
2015	12.907
2016	12.514
2017	11.869
2018	5.678
2019	4.468
2020	4.094
2021	4.888
2022	5.399
2023	5.438