Year FourseamSinkerChangeCurve
2007 12.14 0.00 5.82 -3.51
2008 10.76 3.92 4.61 -3.40
2009 10.49 10.51 4.33 -3.11
2010 10.02 6.46 3.74 -3.97
2011 10.38 6.05 3.17 -5.71
2012 10.17 6.25 3.84 -7.31
2013 9.58 0.00 3.80 -5.88