| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 16.67 | 42.86 | 0.00 |
| 2008 | 15.12 | 17.27 | 13.16 |
| 2009 | 18.70 | 16.30 | 24.14 |
| 2010 | 17.95 | 16.22 | 20.29 |
| 2011 | 16.79 | 16.38 | 15.71 |
| 2012 | 18.81 | 21.38 | 19.35 |
| 2013 | 22.65 | 19.31 | 20.93 |
| 2014 | 20.07 | 19.30 | 27.03 |
| 2015 | 24.05 | 30.08 | 25.93 |
| 2016 | 24.01 | 20.45 | 17.14 |
| 2017 | 23.99 | 25.00 | 26.67 |
| 2018 | 26.47 | 26.09 | 33.33 |