Year	% (modeled ILO estimate)
1991	22.546
1992	20.378
1993	18.861
1994	19.554
1995	18.345
1996	19.069
1997	18.241
1998	20.212
1999	21.764
2000	22.133
2001	21.539
2002	21.266
2003	19.496
2004	21.107
2005	19.691
2006	18.404
2007	18.403
2008	18.444
2009	18.046
2010	15.88
2011	12.638
2012	9.853
2013	9.031
2014	10.664
2015	10.786
2016	11.204
2017	12.295
2018	11.761
2019	13.16
2020	11.733
2021	11.069
2022	13.034
2023	16.126