Year	% (modeled ILO estimate)
1991	66.192
1992	65.43
1993	64.943
1994	64.581
1995	64.257
1996	63.444
1997	63.344
1998	63.112
1999	63.197
2000	63.356
2001	63.392
2002	63.601
2003	63.821
2004	63.689
2005	62.74
2006	61.793
2007	60.906
2008	62.364
2009	63.814
2010	63.765
2011	63.642
2012	63.504
2013	63.384
2014	63.316
2015	63.3
2016	63.376
2017	63.449
2018	63.506
2019	63.45
2020	56.32
2021	57.82
2022	58.878
2023	58.816