Year	% (modeled ILO estimate)
1991	52.931725524753105
1992	53.16955484159181
1993	51.564192310279
1994	50.66179573116086
1995	49.84697314808203
1996	48.12850027013521
1997	45.38887840964435
1998	44.835736538497784
1999	43.41126301008399
2000	43.01814524438438
2001	42.77061039535393
2002	41.042188560660676
2003	39.523843626875056
2004	38.79066096958638
2005	37.454378477530426
2006	36.344343052466286
2007	36.21863971074919
2008	36.29080333234449
2009	36.66828798632996
2010	36.97706901011022
2011	36.2016027112708
2012	36.26055704091587
2013	36.48531503429037
2014	37.03824325709885
2015	37.33366943604517
2016	37.52497965954429
2017	37.75632398161777
2018	37.12028735140118
2019	36.967005215346006
2020	35.16030702274973
2021	34.028276008964625
2022	33.91716469751184
2023	34.13488288135992