Month FourseamSinkerChangeCurve
4/13 7.05 3.61 1.86 -4.87
5/13 7.44 3.40 1.45 -4.91
6/13 7.34 3.34 1.86 -4.67
7/13 7.77 4.37 2.41 -3.74
8/13 7.87 4.33 0.94 -3.83