| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 9.09 | 12.66 | 13.04 |
| 2008 | 7.56 | 17.53 | 14.50 |
| 2009 | 8.97 | 24.51 | 20.14 |
| 2010 | 11.03 | 25.08 | 16.05 |
| 2011 | 10.16 | 26.14 | 14.29 |
| 2012 | 12.53 | 27.09 | 18.57 |
| 2013 | 13.13 | 29.38 | 25.27 |
| 2014 | 9.98 | 27.08 | 20.90 |
| 2015 | 12.79 | 26.40 | 17.68 |
| 2016 | 11.58 | 25.26 | 17.52 |
| 2017 | 14.97 | 31.58 | 23.24 |
| 2018 | 12.23 | 29.63 | 27.47 |
| 2019 | 7.69 | 33.33 | 0.00 |