Year	% (modeled ILO estimate)
1991	15.14
1992	15.192
1993	15.334
1994	15.444
1995	15.428
1996	15.358
1997	14.768
1998	14.178
1999	13.614
2000	13.05
2001	12.49
2002	11.93
2003	11.373
2004	10.832
2005	10.299
2006	9.788
2007	9.289
2008	8.809
2009	8.347
2010	9.071
2011	9.272
2012	9.46
2013	9.349
2014	8.634
2015	9.454
2016	9.038
2017	8.978
2018	8.936
2019	8.916
2020	8.092
2021	8.386
2022	8.354
2023	8.616