Year	% (modeled ILO estimate)
1991	25.209
1992	25.556
1993	25.479
1994	25.3
1995	22.44
1996	20.037
1997	17.716
1998	18.437
1999	19.2
2000	19.941
2001	19.857
2002	19.886
2003	19.893
2004	20.255
2005	20.21
2006	20.345
2007	20.143
2008	20.178
2009	19.944
2010	19.968
2011	22.038
2012	24.159
2013	22.892
2014	22.563
2015	23.586
2016	24.375
2017	22.042
2018	20.032
2019	19.92
2020	18.207
2021	18.543
2022	18.762
2023	19.26