Year	% (modeled ILO estimate)
1991	24.88
1992	24.27
1993	23.537
1994	22.893
1995	22.378
1996	22.124
1997	21.835
1998	21.55
1999	21.243
2000	20.914
2001	20.578
2002	20.568
2003	20.508
2004	20.433
2005	20.335
2006	20.253
2007	20.844
2008	23.754
2009	24.435
2010	23.854
2011	23.843
2012	23.654
2013	24.135
2014	24.45
2015	24.567
2016	24.389
2017	27.225
2018	27.809
2019	30.018
2020	29.328
2021	32.438
2022	34.07
2023	34.702