Year	% (modeled ILO estimate)
1991	74.51
1992	72.534
1993	70.311
1994	68.926
1995	67.814
1996	68.299
1997	68.259
1998	67.768
1999	66.579
2000	66.742
2001	65.377
2002	65.319
2003	63.866
2004	63.798
2005	64.988
2006	64.677
2007	63.946
2008	64.099
2009	61.128
2010	60.755
2011	60.546
2012	60.749
2013	60.042
2014	59.337
2015	59.806
2016	59.048
2017	58.007
2018	58.369
2019	57.429
2020	54.822
2021	50.517
2022	54.247
2023	54.937