| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 29.91 | 29.31 | 25.00 |
| 2008 | 30.77 | 30.77 | 100.00 |
| 2009 | 38.75 | 16.98 | 23.33 |
| 2010 | 25.71 | 20.47 | 21.74 |
| 2011 | 32.00 | 23.81 | 40.00 |
| 2012 | 33.55 | 18.95 | 52.63 |
| 2013 | 18.71 | 21.05 | 11.11 |
| 2014 | 20.59 | 19.47 | 33.33 |
| 2015 | 18.63 | 12.36 | 26.32 |
| 2016 | 28.57 | 19.88 | 21.43 |
| 2017 | 24.51 | 17.55 | 15.09 |
| 2018 | 23.33 | 35.29 | 0.00 |