Year	% (modeled ILO estimate)
1991	56.64
1992	55.328
1993	50.906
1994	50.417
1995	62.261
1996	61.873
1997	58.835
1998	65.087
1999	65.839
2000	70.571
2001	75.629
2002	65.703
2003	74.017
2004	70.037
2005	68.093
2006	70.498
2007	74.286
2008	70.287
2009	57.159
2010	58.508
2011	58.942
2012	62.912
2013	64.889
2014	67.902
2015	70.157
2016	77.234
2017	75.341
2018	74.64
2019	67.867
2020	62.727
2021	63.419
2022	68.069
2023	68.384