Year	% (modeled ILO estimate)
1991	46.44
1992	29.539
1993	33.25
1994	36.614
1995	41.211
1996	41.201
1997	39.329
1998	36.09
1999	34.675
2000	35.69
2001	35.453
2002	35.677
2003	34.187
2004	32.475
2005	30.506
2006	28.555
2007	26.23
2008	24.287
2009	25.169
2010	23.23
2011	34.075
2012	25.68
2013	18.911
2014	17.436
2015	18.799
2016	20.191
2017	21.665
2018	25.573
2019	26.648
2020	23.383
2021	24.304
2022	24.523
2023	24.705