| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 19.16 | 23.17 | 7.69 |
| 2008 | 19.49 | 24.44 | 15.38 |
| 2009 | 16.35 | 16.19 | 17.05 |
| 2010 | 17.03 | 17.00 | 21.69 |
| 2011 | 20.31 | 15.04 | 16.23 |
| 2012 | 24.40 | 13.85 | 15.15 |
| 2013 | 27.87 | 20.91 | 12.40 |
| 2014 | 27.27 | 14.71 | 13.79 |
| 2015 | 24.25 | 19.09 | 22.02 |
| 2016 | 27.14 | 34.74 | 18.40 |
| 2017 | 26.45 | 33.33 | 18.75 |
| 2018 | 23.08 | 21.48 | 24.07 |
| 2019 | 25.47 | 16.67 | 24.44 |
| 2021 | 16.67 | 16.67 | 100.00 |