Year	% (modeled ILO estimate)
1991	49.61058275605651
1992	50.00127411258058
1993	50.45294256912515
1994	51.74806812213969
1995	52.350590730829
1996	52.99066812270426
1997	53.64394715152726
1998	53.53893970788902
1999	54.19549628884136
2000	55.33466621399021
2001	56.479002476212024
2002	57.63005780346822
2003	58.41665300770366
2004	57.9069709315404
2005	59.19557566616389
2006	57.45894707612303
2007	58.62877532815089
2008	58.39212958362317
2009	59.65895673572875
2010	58.896268900797544
2011	57.954472587367746
2012	60.040501202379446
2013	61.852226720647764
2014	62.78340661441406
2015	64.52003920152679
2016	64.815029273628
2017	65.78937082252999
2018	66.8968881585704
2019	69.70863323197722
2020	67.58018925894063
2021	67.67793379332562
2022	64.5760743321719
2023	65.90421074683147