Year	% (modeled ILO estimate)
1991	73.156
1992	72.006
1993	70.53
1994	69.109
1995	73.213
1996	73.782
1997	74.257
1998	71.577
1999	73.341
2000	71.893
2001	67.21
2002	68.827
2003	65.871
2004	66.429
2005	68.14
2006	69.94
2007	70.609
2008	69.078
2009	67.859
2010	63.969
2011	63.36
2012	60.989
2013	58.119
2014	58.269
2015	58.448
2016	59.537
2017	60.378
2018	60.069
2019	61.129
2020	60.22
2021	60.411
2022	62.8
2023	63.954