| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 20.22 | 15.96 | 13.89 |
| 2008 | 16.83 | 19.34 | 9.84 |
| 2009 | 14.36 | 16.59 | 14.17 |
| 2010 | 10.16 | 14.10 | 13.24 |
| 2011 | 12.03 | 16.39 | 14.45 |
| 2012 | 9.94 | 11.84 | 5.88 |
| 2013 | 10.74 | 18.05 | 10.76 |
| 2014 | 11.42 | 12.31 | 7.10 |
| 2015 | 10.96 | 15.45 | 8.89 |
| 2016 | 11.06 | 20.29 | 15.38 |