Year	% (modeled ILO estimate)
1991	14.839
1992	14.965
1993	15.114
1994	15.206
1995	15.289
1996	15.347
1997	15.473
1998	15.485
1999	15.505
2000	15.578
2001	15.405
2002	15.195
2003	15.033
2004	14.843
2005	14.65
2006	14.463
2007	14.29
2008	14.117
2009	13.899
2010	13.84
2011	13.813
2012	13.776
2013	12.99
2014	12.198
2015	11.445
2016	10.689
2017	10.004
2018	9.554
2019	9.137
2020	8.522
2021	8.63
2022	8.66
2023	8.746