Year	% (modeled ILO estimate)
1991	36.95974258169586
1992	36.87558529120507
1993	36.70432667662858
1994	36.41348493554036
1995	36.11704232700707
1996	35.36682027240346
1997	35.02965608297662
1998	34.6058063506289
1999	35.371233378415404
2000	34.42729626569719
2001	33.529213730048866
2002	33.73333459346706
2003	33.780723994230826
2004	33.72245255402492
2005	33.68008584866157
2006	33.10644223236485
2007	32.33085367046573
2008	31.880085420196018
2009	31.563068494834567
2010	31.13780850180156
2011	30.037341803544617
2012	30.014407332718115
2013	29.55445377135824
2014	29.042135545122733
2015	27.972133380692345
2016	27.839868912472788
2017	27.173445335520235
2018	25.7301324049237
2019	25.033302290046986
2020	23.5598070787912
2021	24.034714507295817
2022	23.98688368490745
2023	24.205348278216334