Year	% (modeled ILO estimate)
1991	40.21511789534521
1992	39.90252807532376
1993	39.387700305121776
1994	39.13430512640279
1995	38.67174153300906
1996	38.93758850659073
1997	39.145035044153275
1998	38.47249622989299
1999	38.78804810364553
2000	37.15063393347198
2001	35.89178911771153
2002	35.51383176949522
2003	35.37749650136199
2004	36.60703501918571
2005	36.39950273119143
2006	37.07356674446534
2007	37.3361680854012
2008	37.89303515349078
2009	38.19002681897064
2010	37.83435217755872
2011	36.03967385832159
2012	34.57045109104908
2013	34.101180510775016
2014	33.63696539747531
2015	30.65908663023846
2016	30.296255994865803
2017	29.174461218288926
2018	29.6722346073343
2019	29.57109678597628
2020	27.63730981280791
2021	28.523816440728904
2022	29.46134318154386
2023	29.44541202607625