| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 15.08 | 40.78 | 27.45 |
| 2008 | 15.33 | 41.23 | 32.73 |
| 2009 | 18.21 | 33.61 | 27.76 |
| 2010 | 19.19 | 29.59 | 34.03 |
| 2011 | 16.61 | 28.14 | 29.78 |
| 2012 | 12.07 | 26.74 | 31.54 |
| 2013 | 15.49 | 28.96 | 32.25 |
| 2014 | 13.71 | 21.86 | 30.48 |
| 2015 | 14.70 | 27.27 | 32.63 |
| 2016 | 13.56 | 24.10 | 31.43 |