| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 16.10 | 0.00 | 13.64 |
| 2008 | 10.47 | 19.05 | 23.08 |
| 2009 | 21.63 | 11.54 | 6.06 |
| 2010 | 17.37 | 9.43 | 14.29 |
| 2011 | 18.40 | 24.24 | 15.65 |
| 2012 | 16.22 | 11.11 | 11.11 |
| 2013 | 21.05 | 26.32 | 18.12 |
| 2014 | 26.71 | 21.67 | 24.34 |
| 2015 | 27.74 | 33.33 | 22.22 |
| 2016 | 23.53 | 28.57 | 37.50 |