| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 18.48 | 12.50 | 15.79 |
| 2009 | 17.50 | 16.67 | 26.67 |
| 2010 | 18.32 | 0.00 | 12.50 |
| 2011 | 23.86 | 0.00 | 6.67 |
| 2012 | 16.15 | 0.00 | 11.11 |
| 2013 | 20.00 | 33.33 | 16.67 |
| 2014 | 31.17 | 20.00 | 13.79 |
| 2015 | 19.86 | 33.33 | 28.00 |
| 2016 | 30.77 | 33.33 | 10.00 |
| 2017 | 30.51 | 25.00 | 21.74 |