Year	% (modeled ILO estimate)
1991	43.329
1992	44.433
1993	44.87
1994	44.77
1995	44.268
1996	44.159
1997	43.892
1998	43.678
1999	43.488
2000	43.479
2001	43.294
2002	42.94
2003	42.374
2004	41.738
2005	41.079
2006	40.444
2007	39.842
2008	37.586
2009	34.824
2010	36.083
2011	37.622
2012	37.059
2013	36.488
2014	35.47
2015	33.73
2016	33.381
2017	31.505
2018	35.243
2019	41.201
2020	39.992
2021	34.987
2022	34.922
2023	34.579