Year	% (modeled ILO estimate)
1991	66.506
1992	66.858
1993	65.014
1994	65.03
1995	64.338
1996	62.634
1997	61.168
1998	61.423
1999	62.36
2000	60.43
2001	58.96
2002	60.177
2003	59.407
2004	58
2005	59.212
2006	58.975
2007	60.155
2008	60.465
2009	60.133
2010	59.85
2011	60.581
2012	60.383
2013	59.685
2014	58.21
2015	58.321
2016	58.155
2017	55.7
2018	57.24
2019	57.892
2020	57.555
2021	58.859
2022	59.101
2023	61.943