Year	% (modeled ILO estimate)
1991	68.41
1992	68.333
1993	65.953
1994	64.545
1995	65.679
1996	66.239
1997	66.669
1998	64.829
1999	66.999
2000	69.046
2001	69.804
2002	70.367
2003	69.98
2004	69.578
2005	67.869
2006	66.171
2007	64.115
2008	62.513
2009	62.064
2010	62.277
2011	59.964
2012	60.764
2013	61.566
2014	58.705
2015	58.635
2016	59.355
2017	60.04
2018	60.68
2019	58.793
2020	61.94
2021	64.178
2022	63.494
2023	63.545