Year	% (modeled ILO estimate)
1991	63.842113545790575
1992	62.50203759246315
1993	60.68367838404846
1994	59.60476042733511
1995	59.35068799715705
1996	58.985549703568346
1997	58.84046654857187
1998	59.2109184463723
1999	59.59181556804632
2000	60.000158315320874
2001	60.209358654434524
2002	60.0236151426228
2003	59.76502637333884
2004	59.35148523485629
2005	59.54576544668573
2006	60.03365840455702
2007	60.595020695242944
2008	60.48927353592187
2009	58.424474376811325
2010	57.73248879410738
2011	57.521445501073885
2012	56.70998049661134
2013	56.07895594666018
2014	56.10784054012134
2015	56.40850430254424
2016	57.117099898283776
2017	57.74570073308111
2018	58.309074115029375
2019	58.705540512492846
2020	57.45711773908793
2021	57.794962937174105
2022	58.94809621645218
2023	59.351940822009574