Year	% (modeled ILO estimate)
1991	65.84
1992	60.371
1993	54.91
1994	53.554
1995	53.383
1996	53.212
1997	53.041
1998	52.87
1999	52.699
2000	52.527
2001	52.356
2002	50.504
2003	50.632
2004	48.548
2005	49.892
2006	51.337
2007	52.238
2008	52.844
2009	51.026
2010	51.633
2011	52.98
2012	52.582
2013	54.496
2014	55.445
2015	55.13
2016	54.837
2017	54.702
2018	54.085
2019	55.016
2020	52.053
2021	54.029
2022	56.915
2023	58.681