Year	% (modeled ILO estimate)
1991	62.376
1992	62.142
1993	61.715
1994	61.784
1995	61.756
1996	61.631
1997	61.193
1998	60.65
1999	60.153
2000	59.525
2001	59.476
2002	59.381
2003	59.37
2004	59.244
2005	59.05
2006	59.012
2007	59.238
2008	59.57
2009	59.789
2010	60.009
2011	60.175
2012	60.035
2013	59.84
2014	59.594
2015	59.3
2016	58.476
2017	57.598
2018	57.273
2019	56.923
2020	56.025
2021	56.01
2022	56.86
2023	56.959