Year	% (modeled ILO estimate)
1991	44.16620122435704
1992	43.503320320893465
1993	42.3871848008725
1994	41.55958103748936
1995	40.604639890977175
1996	39.76757459885762
1997	38.99837835871034
1998	38.34037993586577
1999	37.77208337079051
2000	37.22521278754192
2001	36.71087835242023
2002	36.290060125338066
2003	35.71824109960555
2004	35.41297542550323
2005	35.11582503268587
2006	34.765170761811916
2007	34.384682075954714
2008	33.753813841365464
2009	32.90428827200425
2010	32.20067053664985
2011	31.560252908067778
2012	30.957221667434773
2013	30.442356505408128
2014	29.987566866034726
2015	29.555577704565998
2016	29.11802206040562
2017	28.74742556375962
2018	28.349335393882843
2019	28.293184049120274
2020	26.314932991465188
2021	27.08809780167707
2022	27.584371501393683
2023	28.267585625168678
