| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 29.17 | 28.57 | 0.00 |
| 2008 | 32.20 | 23.64 | 26.32 |
| 2009 | 22.17 | 26.09 | 12.07 |
| 2010 | 31.14 | 23.42 | 23.19 |
| 2011 | 27.61 | 29.31 | 24.29 |
| 2012 | 24.78 | 22.76 | 19.35 |
| 2013 | 21.60 | 26.90 | 25.58 |
| 2014 | 21.80 | 24.56 | 17.57 |
| 2015 | 20.99 | 17.07 | 14.81 |
| 2016 | 25.66 | 25.00 | 31.43 |
| 2017 | 22.51 | 21.88 | 20.00 |
| 2018 | 32.35 | 17.39 | 22.22 |