Year	% (modeled ILO estimate)
1991	70.505
1992	70.087
1993	68.614
1994	67.367
1995	62.548
1996	63.26
1997	65.596
1998	66.519
1999	65.116
2000	64.431
2001	61.666
2002	59.173
2003	64.067
2004	65.728
2005	67.108
2006	68.246
2007	68.768
2008	68.665
2009	67.675
2010	68.422
2011	69.346
2012	68.797
2013	68.396
2014	67.345
2015	66.635
2016	65.8
2017	65.127
2018	64.691
2019	64.48
2020	58.842
2021	65.265
2022	66.629
2023	66.644