| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2010 | 21.88 | 36.36 | 40.00 |
| 2011 | 24.24 | 30.08 | 26.67 |
| 2012 | 27.71 | 25.00 | 38.10 |
| 2013 | 20.50 | 26.51 | 0.00 |
| 2014 | 27.27 | 15.79 | 0.00 |
| 2015 | 17.67 | 26.42 | 20.00 |
| 2016 | 17.02 | 21.35 | 24.00 |
| 2017 | 20.57 | 22.03 | 15.79 |
| 2018 | 21.64 | 29.87 | 28.57 |
| 2019 | 18.78 | 23.94 | 18.58 |