| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 20.69 | 13.33 | 0.00 |
| 2008 | 20.65 | 12.96 | 23.53 |
| 2009 | 21.10 | 25.00 | 11.90 |
| 2010 | 21.84 | 11.11 | 12.90 |
| 2011 | 17.91 | 20.00 | 15.38 |
| 2012 | 22.06 | 32.26 | 27.78 |
| 2013 | 26.25 | 15.38 | 22.22 |
| 2014 | 28.28 | 38.89 | 35.59 |
| 2015 | 36.21 | 25.00 | 24.62 |
| 2016 | 19.35 | 16.67 | 17.07 |
| 2017 | 10.53 | 0.00 | 50.00 |