Year	% (modeled ILO estimate)
1991	43.632
1992	44.668
1993	43.28
1994	42.475
1995	42.608
1996	40.803
1997	40.597
1998	38.992
1999	38.981
2000	39.691
2001	40.319
2002	40.912
2003	41.431
2004	41.593
2005	41.731
2006	41.768
2007	41.621
2008	41.049
2009	40.49
2010	39.981
2011	40.348
2012	40.014
2013	39.654
2014	39.227
2015	38.857
2016	38.612
2017	38.213
2018	37.863
2019	37.5
2020	36.448
2021	36.707
2022	37.289
2023	37.376