Year	% (modeled ILO estimate)
1991	73.796
1992	71.814
1993	71.069
1994	70.188
1995	69.394
1996	68.579
1997	67.82
1998	67.048
1999	65.222
2000	64.836
2001	65.01
2002	65.224
2003	65.491
2004	65.733
2005	65.938
2006	66.109
2007	65.444
2008	64.917
2009	64.238
2010	63.722
2011	64.097
2012	64.387
2013	64.552
2014	62.71
2015	60.78
2016	61.702
2017	62.887
2018	63.021
2019	63.138
2020	62.414
2021	62.493
2022	62.969
2023	62.872