Year	% (modeled ILO estimate)
1991	42.521
1992	42.251
1993	42.083
1994	42.08
1995	41.745
1996	41.839
1997	41.163
1998	40.441
1999	40.082
2000	40.65
2001	28.818
2002	22.854
2003	26.508
2004	25.431
2005	27.623
2006	28.441
2007	29.337
2008	26.738
2009	27.759
2010	27.358
2011	32.227
2012	32.773
2013	31.603
2014	31.679
2015	34.137
2016	33.816
2017	32.812
2018	32.124
2019	32.781
2020	27.681
2021	30.211
2022	34.677