Year	% (modeled ILO estimate)
1991	86.557
1992	86.368
1993	86.007
1994	85.886
1995	85.925
1996	86.05
1997	86.072
1998	85.985
1999	85.904
2000	85.868
2001	85.927
2002	86.344
2003	86.745
2004	87.111
2005	87.437
2006	87.744
2007	87.533
2008	87.288
2009	87.06
2010	86.655
2011	86.341
2012	86.37
2013	86.443
2014	86.718
2015	86.388
2016	85.985
2017	85.574
2018	85.133
2019	84.668
2020	83.337
2021	82.788
2022	84.197
2023	84.436
