| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 14.19 | 35.71 | 0.00 |
| 2008 | 10.01 | 27.13 | 20.00 |
| 2009 | 14.61 | 24.12 | 29.82 |
| 2010 | 11.23 | 23.99 | 9.21 |
| 2011 | 15.18 | 34.00 | 23.26 |
| 2012 | 11.54 | 35.42 | 33.33 |
| 2013 | 13.07 | 33.65 | 19.12 |
| 2014 | 11.63 | 26.50 | 16.36 |
| 2015 | 12.44 | 28.72 | 18.52 |
| 2016 | 16.02 | 28.15 | 5.00 |
| 2017 | 17.08 | 29.72 | 23.08 |