Year FourseamSinkerChangeCurve
2007 12.14 0.00 5.82 -3.51
2008 11.47 5.84 4.95 -2.98
2009 10.58 0.00 4.40 -3.03
2010 10.08 6.46 3.75 -3.91
2011 10.37 5.97 3.11 -5.78
2012 10.10 6.16 3.80 -7.38
2013 9.49 0.00 3.73 -5.96