Year	% (modeled ILO estimate)
1991	27.923
1992	27.248
1993	27.092
1994	26.682
1995	26.479
1996	26.043
1997	25.154
1998	24.344
1999	23.595
2000	22.815
2001	22.037
2002	21.207
2003	20.458
2004	19.718
2005	19.61
2006	20.025
2007	20.381
2008	20.798
2009	21.2
2010	21.668
2011	22.128
2012	22.474
2013	22.807
2014	23.148
2015	22.174
2016	21.161
2017	20.568
2018	20.18
2019	20.287
2020	18.258
2021	18.532
2022	20.73
2023	21.108