| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 21.43 | 5.88 | 41.67 |
| 2008 | 15.31 | 26.67 | 15.79 |
| 2009 | 20.86 | 34.48 | 9.68 |
| 2010 | 19.59 | 21.11 | 11.36 |
| 2011 | 23.05 | 23.89 | 31.82 |
| 2012 | 19.29 | 16.16 | 9.62 |
| 2013 | 24.76 | 12.00 | 23.08 |
| 2014 | 28.30 | 20.69 | 15.38 |
| 2015 | 30.43 | 35.48 | 26.67 |
| 2016 | 29.73 | 36.36 | 16.67 |
| 2017 | 23.08 | 31.03 | 0.00 |
| 2018 | 21.92 | 37.50 | 0.00 |