Year	% (modeled ILO estimate)
1991	64.502
1992	59.361
1993	55.582
1994	54.885
1995	53.61
1996	54.255
1997	56.028
1998	57.195
1999	58.673
2000	59.291
2001	59.68
2002	58.922
2003	58.636
2004	58.483
2005	59.6
2006	60.324
2007	60.986
2008	61.747
2009	58.423
2010	58.151
2011	58.749
2012	58.365
2013	57.326
2014	56.704
2015	56.215
2016	56.701
2017	57.102
2018	58.413
2019	58.638
2020	57.865
2021	58.544
2022	59.133
2023	58.774