| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 18.12 | 16.22 | 10.53 |
| 2008 | 22.36 | 21.11 | 22.58 |
| 2009 | 18.39 | 19.44 | 18.97 |
| 2010 | 22.22 | 17.60 | 27.87 |
| 2011 | 19.02 | 20.80 | 18.84 |
| 2012 | 20.95 | 13.60 | 14.52 |
| 2013 | 20.99 | 21.33 | 25.64 |
| 2014 | 23.92 | 17.50 | 22.64 |
| 2015 | 24.93 | 22.92 | 19.72 |
| 2016 | 21.41 | 21.05 | 27.59 |
| 2017 | 28.26 | 22.73 | 15.52 |
| 2018 | 27.89 | 20.73 | 30.56 |
| 2019 | 14.29 | 0.00 | 0.00 |