Year	% (modeled ILO estimate)
1991	70.921
1992	70.19
1993	70.92
1994	69.98
1995	69.76
1996	66.42
1997	64.57
1998	67.05
1999	65.66
2000	64.061
2001	62.43
2002	60.77
2003	64.43
2004	62.65
2005	63.016
2006	63.38
2007	64.05
2008	61.87
2009	59.642
2010	57.373
2011	57.373
2012	57.355
2013	56.136
2014	55.727
2015	55.009
2016	55.482
2017	56.173
2018	54.845
2019	56.973
2020	53.308
2021	56.145
2022	55.964
2023	56.108