Year FourseamSinkerCurveChange
2007 51.98 0.00 37.00 10.12
2008 50.14 0.09 32.30 17.47
2009 56.69 0.17 20.70 22.44
2010 50.81 9.41 22.49 17.30
2011 30.19 29.46 20.58 19.77
2012 33.72 26.50 19.35 20.43
2013 49.29 4.53 21.81 24.36
2014 54.44 4.44 13.33 27.78