Year	%
2002	98.20849
2003	98.05356
2004	99.74063
2005	99.50317
2006	99.31933
2007	99.24635
2011	97.78508
2013	96.9776
2014	99.9048
2015	98.48073
2016	98.09939
2017	98.26575