Year	% (modeled ILO estimate)
1991	27.609
1992	25.112
1993	23.364
1994	21.72
1995	20.584
1996	20.342
1997	19.951
1998	20.22
1999	20.663
2000	21.835
2001	22.089
2002	21.057
2003	20.69
2004	22.668
2005	20.833
2006	20.075
2007	19.545
2008	19.294
2009	16.952
2010	16.351
2011	15.503
2012	15.007
2013	13.724
2014	12.791
2015	12.459
2016	13.761
2017	13.886
2018	14.297
2019	15.18
2020	12.847
2021	13.537
2022	16.021
2023	15.996