Year	% (modeled ILO estimate)
1991	58.535
1992	61.117
1993	63.211
1994	64.532
1995	65.123
1996	65.112
1997	64.925
1998	64.54
1999	64.225
2000	63.679
2001	60.229
2002	55.172
2003	53.692
2004	50.193
2005	49.37
2006	44.09
2007	41.74
2008	38.28
2009	33.02
2010	25.25
2011	34.04
2012	34.282
2013	34.737
2014	37.213
2015	38.744
2016	40.907
2017	42.631
2018	44.015
2019	47.431
2020	46.885
2021	47.375
2022	46.835
2023	47.16