Year	% (modeled ILO estimate)
1991	49.203527205833765
1992	48.8524696579705
1993	47.84517498708384
1994	47.34149506333132
1995	46.82770837912039
1996	46.00650929730954
1997	45.353957024401105
1998	45.03706635755126
1999	45.381700937958634
2000	45.42493295895718
2001	44.708077192950256
2002	44.34700661214644
2003	43.58257271122864
2004	43.47108277525588
2005	43.416144867792276
2006	43.14959220481826
2007	42.838440164121415
2008	42.863064178228186
2009	42.38626488908489
2010	41.49533323069372
2011	41.38615213881783
2012	41.116273685994706
2013	41.42677919147508
2014	41.34135979229781
2015	41.425595550514394
2016	41.62248866299537
2017	41.61958121786254
2018	41.82010449566422
2019	42.10389371527705
2020	40.64581563189576
2021	41.5154709374722
2022	42.05854742520839
2023	42.55467322645072
