Year	% (modeled ILO estimate)
1991	68.075
1992	68.401
1993	68.673
1994	68.882
1995	68.764
1996	68.189
1997	69.043
1998	67.963
1999	66.798
2000	65.81
2001	64.857
2002	59.26
2003	58.648
2004	57.364
2005	56.784
2006	57.509
2007	58.121
2008	58.615
2009	58.043
2010	59.396
2011	57.921
2012	58.984
2013	58.842
2014	59.537
2015	59.714
2016	59.531
2017	61.077
2018	61.988
2019	62.655
2020	62.094
2021	58.234
2022	58.349
2023	58.054