Year FourseamSinkerChangeCurve
2010 -5.26 -7.93 -7.12 8.80
2011 -5.77 -8.29 -9.15 8.11
2012 -4.66 -7.96 -8.54 7.94
2013 -5.93 -8.17 -8.69 8.38