Year	% (modeled ILO estimate)
1991	67.244
1992	67.224
1993	66.472
1994	68.291
1995	67.72
1996	66.1
1997	65.615
1998	65.496
1999	66.145
2000	65.602
2001	65.259
2002	64.56
2003	64.715
2004	62.221
2005	62.382
2006	62.976
2007	64.127
2008	64.467
2009	63.227
2010	63.354
2011	63.427
2012	63.251
2013	62.983
2014	62.212
2015	62.002
2016	62.199
2017	62.472
2018	63.425
2019	63.597
2020	62.418
2021	62.114
2022	63.255
2023	63.24
