Year	% (modeled ILO estimate)
1991	33.544
1992	32.402
1993	31.67
1994	31.073
1995	30.494
1996	29.883
1997	29.034
1998	28.047
1999	27.094
2000	26.33
2001	25.811
2002	25.203
2003	24.448
2004	23.884
2005	23.376
2006	23.062
2007	22.75
2008	22.381
2009	20.078
2010	15.371
2011	18.013
2012	17.089
2013	16.918
2014	15.928
2015	17.801
2016	17.386
2017	17.975
2018	16.653
2019	15.636
2020	14.775
2021	13.286
2022	14.961
2023	15.461