Year	% (modeled ILO estimate)
1991	65.703
1992	66.609
1993	66.562
1994	67.175
1995	67.868
1996	67.341
1997	66.403
1998	65.288
1999	64.316
2000	62.973
2001	62.119
2002	61.603
2003	60.373
2004	58.94
2005	58.247
2006	57.136
2007	53.156
2008	53.125
2009	54.161
2010	55.63
2011	54.449
2012	55.553
2013	55.779
2014	56.641
2015	57.396
2016	58.378
2017	58.734
2018	59.37
2019	61.94
2020	59.294
2021	61.078
2022	62.773
2023	63.006