Year	% (modeled ILO estimate)
1991	15.689
1992	16.399
1993	17.261
1994	17.976
1995	18.781
1996	19.638
1997	19.465
1998	19.074
1999	18.678
2000	18.186
2001	17.86
2002	17.543
2003	17.198
2004	16.843
2005	16.502
2006	16.17
2007	15.844
2008	15.497
2009	14.193
2010	12.857
2011	11.47
2012	11.11
2013	10.93
2014	10.889
2015	10.996
2016	10.866
2017	10.654
2018	10.43
2019	10.19
2020	9.126
2021	9.411
2022	10.199
2023	9.288