Year	% (modeled ILO estimate)
1991	68.755
1992	68.469
1993	68.041
1994	67.591
1995	67.819
1996	66.143
1997	62.874
1998	62.38
1999	63.615
2000	65.827
2001	63.752
2002	61.874
2003	61.745
2004	61.327
2005	62.935
2006	64.702
2007	66.176
2008	65.261
2009	62.546
2010	61.14
2011	59.754
2012	61.048
2013	59.725
2014	60.403
2015	61.166
2016	62.131
2017	62.963
2018	63.084
2019	63.827
2020	57.802
2021	60.268
2022	65.75
2023	63.199