Year	% (modeled ILO estimate)
1991	12.782
1992	13.603
1993	18.067
1994	18.569
1995	18.473
1996	17.694
1997	19.508
1998	19.172
1999	21.797
2000	21.629
2001	20.841
2002	20.454
2003	21.889
2004	21.727
2005	22.546
2006	19.706
2007	17.177
2008	17.906
2009	15.399
2010	14.192
2011	14.257
2012	14.257
2013	14.145
2014	14.105
2015	14.537
2016	13.708
2017	13.025
2018	12.465
2019	11.752
2020	11.046
2021	11.529
2022	11.968
2023	11.854