Year High Low
2017 62.9 36.25
2016 61.45 31.5
2015 71.25 23.9
2014 36.15 15.5
2013 32.35 9.8
2012 42.05 25.1
2011 74 32.35
2010 123.95 53.1
2009 138.95 83.5
2008 161.95 72.4
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