| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 5.26 | 38.46 | 30.00 |
| 2009 | 19.35 | 17.65 | 13.21 |
| 2010 | 18.85 | 14.29 | 17.14 |
| 2011 | 23.53 | 7.69 | 50.00 |
| 2012 | 23.33 | 8.33 | 60.00 |
| 2013 | 17.07 | 33.33 | 27.78 |
| 2014 | 25.50 | 18.52 | 37.65 |
| 2015 | 30.42 | 21.43 | 27.78 |
| 2016 | 26.67 | 10.00 | 22.22 |
| 2017 | 30.26 | 27.78 | 20.45 |
| 2018 | 24.00 | 13.04 | 20.83 |
| 2019 | 25.22 | 26.32 | 33.33 |