Year	% (modeled ILO estimate)
1991	16.673
1992	17.573
1993	18.45
1994	17.696
1995	17.585
1996	16.286
1997	15.085
1998	13.994
1999	15.762
2000	16.689
2001	15.069
2002	15.053
2003	15.015
2004	13.899
2005	12.824
2006	11.79
2007	10.57
2008	10.337
2009	10.284
2010	10.114
2011	11.756
2012	10.024
2013	9.559
2014	9.691
2015	9.936
2016	10.134
2017	10.268
2018	10.364
2019	10.454
2020	9.618
2021	9.865
2022	10.323
2023	10.562