| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 9.43 | 9.46 | 16.22 |
| 2008 | 3.55 | 7.50 | 15.38 |
| 2009 | 7.38 | 8.18 | 15.86 |
| 2010 | 8.45 | 9.68 | 12.18 |
| 2011 | 7.56 | 15.48 | 9.94 |
| 2012 | 7.76 | 13.86 | 16.14 |
| 2013 | 8.96 | 14.19 | 20.47 |
| 2014 | 7.62 | 14.37 | 25.55 |
| 2015 | 3.49 | 14.29 | 14.29 |
| 2016 | 7.66 | 13.25 | 10.17 |
| 2017 | 5.81 | 13.45 | 19.72 |
| 2018 | 6.62 | 11.38 | 17.18 |
| 2019 | 7.51 | 10.11 | 21.05 |