Year	% (modeled ILO estimate)
1991	35.66313461092856
1992	35.90838351408989
1993	35.92360359959683
1994	35.799626202126035
1995	35.68255299282433
1996	35.156037808125305
1997	34.62932762824339
1998	34.02275972909212
1999	34.6075560069778
2000	33.59468387108843
2001	32.49748862543833
2002	32.54453537754291
2003	32.4658477161517
2004	32.222804275023655
2005	32.02220655618705
2006	31.896732793713657
2007	31.53089971776266
2008	31.705611676310898
2009	31.19564877592743
2010	30.846312728722236
2011	30.24473112023465
2012	29.94512325740702
2013	29.804506996747705
2014	29.45253687302243
2015	28.234998262188245
2016	27.84572763390619
2017	26.817815488822763
2018	25.644556857301062
2019	25.029264034989374
2020	24.16136662361146
2021	24.72750466171163
2022	24.914588626059444
2023	24.9439114133651