Year	% (modeled ILO estimate)
1991	36.207
1992	34.992
1993	33.277
1994	32.919
1995	32.667
1996	31.225
1997	29.656
1998	33.822
1999	32.305
2000	32.412
2001	30.315
2002	30.959
2003	30.191
2004	31.654
2005	29.555
2006	29.221
2007	28.831
2008	28.121
2009	27.196
2010	24.061
2011	19.308
2012	15.996
2013	14.542
2014	15.675
2015	15.08
2016	14.669
2017	15.831
2018	15.936
2019	15.843
2020	15.935
2021	15.644
2022	19.039
2023	20.801