| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 13.90 | 18.75 | 13.11 |
| 2008 | 15.92 | 26.89 | 23.68 |
| 2009 | 14.09 | 25.26 | 9.09 |
| 2010 | 9.52 | 25.20 | 18.87 |
| 2011 | 15.71 | 24.23 | 15.87 |
| 2012 | 16.29 | 24.22 | 15.09 |
| 2013 | 18.22 | 37.37 | 17.39 |
| 2014 | 17.30 | 30.64 | 20.48 |
| 2015 | 22.17 | 26.80 | 22.29 |
| 2016 | 17.49 | 33.57 | 27.61 |