| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | -3.70 | 6.96 | 15.72 |
| 2008 | 1.55 | 7.51 | 14.48 |
| 2009 | 0.33 | 9.90 | 13.06 |
| 2010 | -2.59 | 5.28 | 1.54 |
| 2011 | 1.39 | 7.47 | 11.52 |
| 2012 | 3.14 | 10.88 | 13.66 |
| 2013 | 0.76 | 10.42 | 13.92 |
| 2014 | 3.47 | 7.85 | 10.15 |
| 2015 | -0.28 | 12.01 | 10.41 |
| 2016 | 0.41 | 6.43 | 7.03 |
| 2017 | -4.08 | 6.14 | 9.81 |
| 2018 | 2.88 | -0.21 | 0.92 |