Year	% (modeled ILO estimate)
1991	67.153
1992	66.519
1993	66.14
1994	65.704
1995	65.03
1996	64.632
1997	64.232
1998	63.83
1999	63.426
2000	63.02
2001	61.145
2002	58.245
2003	59.427
2004	55.473
2005	53.155
2006	50.691
2007	47.473
2008	44.982
2009	44.173
2010	44.427
2011	44.391
2012	44.855
2013	46.455
2014	47.382
2015	47.718
2016	46.382
2017	45.709
2018	45.664
2019	45.227
2020	38.497
2021	32.323
2022	37.803
2023	40.589