Year	% (modeled ILO estimate)
1991	71.343
1992	71.1
1993	70.655
1994	70.279
1995	69.972
1996	69.651
1997	69.335
1998	69.08
1999	68.824
2000	68.567
2001	67.604
2002	66.699
2003	65.851
2004	65.253
2005	64.575
2006	63.96
2007	63.331
2008	62.514
2009	61.755
2010	61.167
2011	61.152
2012	60.83
2013	60.533
2014	60.341
2015	60.133
2016	59.929
2017	59.64
2018	59.385
2019	58.999
2020	57.511
2021	59.099
2022	58.44
2023	57.927