Year	%
1992	98.23417
1995	100
1996	99.95667
1998	99.80867
2000	99.4588
2001	99.56066
2002	99.75925
2003	99.81499
2004	99.65256
2005	99.5879
2008	99.42999
2009	99.40521
2010	99.53225
2011	99.34321
2015	99.51149
2016	99.54848