Year	% (modeled ILO estimate)
1991	11.944
1992	11.191
1993	10.793
1994	10.385
1995	9.353
1996	9.709
1997	9.648
1998	8.954
1999	8.256
2000	7.625
2001	7.557
2002	7.164
2003	6.887
2004	7.605
2005	7.204
2006	7.259
2007	6.196
2008	5.856
2009	5.428
2010	5.662
2011	6.003
2012	5.663
2013	5.511
2014	5.252
2015	5.238
2016	5.091
2017	4.872
2018	4.804
2019	4.757
2020	3.812
2021	4.15
2022	4.375
2023	4.552