| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 14.50 | 16.33 | 32.43 |
| 2008 | 17.65 | 20.65 | 37.30 |
| 2009 | 15.13 | 31.43 | 32.25 |
| 2010 | 19.40 | 33.40 | 35.86 |
| 2011 | 15.63 | 29.57 | 30.72 |
| 2012 | 12.86 | 34.38 | 33.65 |
| 2013 | 16.17 | 26.49 | 37.32 |
| 2014 | 13.82 | 29.53 | 32.93 |
| 2015 | 10.62 | 25.56 | 29.51 |
| 2016 | 11.60 | 21.62 | 24.35 |