Year	% (modeled ILO estimate)
1991	67.38
1992	66.986
1993	66.953
1994	66.504
1995	65.911
1996	64.989
1997	63.339
1998	63.157
1999	63.431
2000	63.451
2001	63.614
2002	63.345
2003	63.115
2004	62.133
2005	64.113
2006	67.048
2007	69.126
2008	71.066
2009	71.69
2010	69.987
2011	69.095
2012	69.487
2013	69.764
2014	70.425
2015	71.164
2016	70.945
2017	70.359
2018	69.518
2019	68.204
2020	66.369
2021	57.56
2022	59.128
2023	60.638