| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 15.87 | 22.73 | 22.73 |
| 2008 | 15.42 | 30.86 | 31.03 |
| 2009 | 15.23 | 37.84 | 36.11 |
| 2010 | 15.60 | 32.39 | 26.45 |
| 2011 | 20.00 | 26.89 | 27.05 |
| 2012 | 15.62 | 34.92 | 28.95 |
| 2013 | 14.23 | 25.49 | 13.73 |
| 2014 | 14.95 | 29.44 | 30.88 |
| 2015 | 14.22 | 30.21 | 26.76 |
| 2016 | 16.88 | 33.00 | 25.89 |
| 2017 | 20.75 | 40.11 | 37.30 |