Year	% (modeled ILO estimate)
1991	12.33
1992	12.368
1993	12.346
1994	12.304
1995	12.309
1996	12.115
1997	11.95
1998	11.846
1999	11.8
2000	11.79
2001	12.012
2002	12.285
2003	12.563
2004	12.818
2005	13.048
2006	12.751
2007	12.455
2008	12.218
2009	12.091
2010	12.083
2011	12.49
2012	13.003
2013	13.827
2014	14.684
2015	15.083
2016	15.462
2017	15.823
2018	15.119
2019	14.376
2020	12.928
2021	11.588
2022	4.162
2023	4.427