Year	% (modeled ILO estimate)
1991	76.09
1992	76.219
1993	76.929
1994	76.876
1995	77.003
1996	74.008
1997	75.507
1998	76.824
1999	75.841
2000	75.968
2001	75.069
2002	74.256
2003	74.321
2004	73.973
2005	75.231
2006	74.837
2007	76.278
2008	74.425
2009	71.366
2010	70.084
2011	68.978
2012	71.294
2013	70.809
2014	71.742
2015	70.392
2016	68.616
2017	69.25
2018	70.352
2019	69.562
2020	63.236
2021	64.908
2022	66.652
2023	65.424