Year	% (modeled ILO estimate)
1991	30.649
1992	31.544
1993	32.193
1994	33.178
1995	34.599
1996	29.83
1997	32.15
1998	36.838
1999	34.236
2000	32.86
2001	30.42
2002	25.611
2003	25.389
2004	26.95
2005	30.32
2006	29.719
2007	31.944
2008	33.221
2009	34.354
2010	33.859
2011	36.837
2012	35.549
2013	34.693
2014	35.127
2015	32.682
2016	30.955
2017	29.149
2018	29.826
2019	28.901
2020	23.912
2021	25.678
2022	29.799
2023	29.698