Year	% (modeled ILO estimate)
1991	59.171
1992	59.096
1993	59.079
1994	59.074
1995	59.151
1996	59.176
1997	59.224
1998	59.246
1999	59.268
2000	59.331
2001	59.199
2002	59.148
2003	59.092
2004	59.128
2005	59.12
2006	59.118
2007	59.111
2008	59.116
2009	58.998
2010	58.898
2011	58.854
2012	58.847
2013	58.817
2014	58.755
2015	58.651
2016	58.681
2017	58.741
2018	58.883
2019	58.905
2020	57.974
2021	58.021
2022	58.613
2023	58.841