Year	% (modeled ILO estimate)
1991	64.006
1992	63.072
1993	62.057
1994	61.232
1995	61.056
1996	60.803
1997	60.952
1998	60.904
1999	60.72
2000	60.286
2001	60.494
2002	60.548
2003	60.142
2004	60.076
2005	60.163
2006	60.415
2007	60.606
2008	60.746
2009	60.757
2010	60.58
2011	60.56
2012	60.425
2013	60.159
2014	59.712
2015	58.921
2016	58.143
2017	57.473
2018	56.733
2019	55.928
2020	54.64
2021	54.708
2022	55.951
2023	56.519