Year	% (modeled ILO estimate)
1991	63.942
1992	62.505
1993	61.061
1994	59.945
1995	60.205
1996	61.659
1997	60.688
1998	59.278
1999	56.488
2000	54.731
2001	54.678
2002	55.193
2003	56.173
2004	56.326
2005	57.74
2006	59.866
2007	61.046
2008	62.565
2009	60.359
2010	58.179
2011	58.801
2012	59.119
2013	58.618
2014	60.97
2015	60.892
2016	62.139
2017	62.377
2018	63.655
2019	63.812
2020	62.369
2021	61.902
2022	63.233
2023	63.523