| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 6.67 | 25.00 | 0.00 |
| 2008 | 14.17 | 20.00 | 25.00 |
| 2009 | 15.94 | 45.00 | 33.33 |
| 2010 | 20.00 | 35.71 | 100.00 |
| 2011 | 19.53 | 22.58 | 0.00 |
| 2012 | 23.46 | 41.94 | 0.00 |
| 2013 | 22.15 | 22.22 | 0.00 |
| 2014 | 14.11 | 32.43 | 0.00 |
| 2015 | 12.65 | 17.39 | 0.00 |
| 2016 | 16.81 | 22.22 | 20.00 |
| 2017 | 19.05 | 20.69 | 100.00 |
| 2018 | 23.86 | 29.41 | 0.00 |
| 2019 | 14.49 | 45.83 | 100.00 |
| 2021 | 15.73 | 41.46 | 0.00 |
| 2022 | 18.52 | 26.32 | 0.00 |