Year	% (modeled ILO estimate)
1991	68.148
1992	66.178
1993	64.445
1994	63.935
1995	63.175
1996	62.254
1997	61.481
1998	61.822
1999	63.47
2000	64.401
2001	64.672
2002	66.541
2003	67.341
2004	66.85
2005	65.882
2006	66.251
2007	66.988
2008	67.348
2009	65.349
2010	64.499
2011	64.527
2012	63.516
2013	63.835
2014	64.206
2015	64.245
2016	63.735
2017	63.914
2018	63.343
2019	64.586
2020	61.746
2021	63.827
2022	64.46
2023	64.277