Year	% (modeled ILO estimate)
1991	41.788741427692344
1992	41.59441107371007
1993	41.05519823454728
1994	40.90549654453967
1995	40.451990769142995
1996	40.359485012113595
1997	40.23205605681153
1998	39.98907237019339
1999	39.894073438518525
2000	39.459958221126655
2001	39.00911660432787
2002	38.533436821066154
2003	38.23812200951118
2004	38.088094699266016
2005	37.55782672092625
2006	37.183627286419075
2007	36.64420302173159
2008	35.9538262288919
2009	35.12936465463407
2010	34.541084531881395
2011	33.83323022901469
2012	33.21876541489081
2013	32.79776584911074
2014	32.27018586107176
2015	31.618896958468003
2016	31.22259414044896
2017	30.775342742310524
2018	30.245072238223216
2019	30.29097309946724
2020	28.867731648491844
2021	29.611533587437933
2022	30.53878779171914
2023	31.17077399191644