Year	% (modeled ILO estimate)
1991	29.27
1992	30.278
1993	26.23
1994	25.275
1995	24.189
1996	22.599
1997	21.779
1998	22.643
1999	23.347
2000	26.706
2001	24.969
2002	25.638
2003	23.771
2004	25.839
2005	25.205
2006	24.735
2007	24.975
2008	25.007
2009	23.19
2010	23.111
2011	24.188
2012	22.632
2013	21.887
2014	21.805
2015	21.676
2016	21.409
2017	20.976
2018	23.653
2019	25.981
2020	22.647
2021	23.817
2022	25.606
2023	27.287