Year	% (modeled ILO estimate)
1991	24.16
1992	24.405
1993	24.257
1994	23.131
1995	21.871
1996	21.594
1997	20.375
1998	19.978
1999	20.101
2000	21.714
2001	23.077
2002	23.146
2003	22.517
2004	21.967
2005	21.368
2006	22.747
2007	23.982
2008	24.281
2009	24.096
2010	23.946
2011	23.837
2012	23.785
2013	23.719
2014	24.208
2015	24.732
2016	23.937
2017	25.783
2018	25.895
2019	25.942
2020	24.294
2021	27.182
2022	28.093
2023	28.124