| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 7.88 | 14.48 | 9.40 |
| 2008 | 5.80 | 16.37 | 6.53 |
| 2009 | 6.85 | 18.94 | 8.72 |
| 2010 | 6.13 | 20.18 | 14.08 |
| 2011 | 4.51 | 18.22 | 12.05 |
| 2012 | 6.42 | 24.81 | 13.39 |
| 2013 | 5.44 | 20.19 | 12.90 |
| 2014 | 6.99 | 18.31 | 18.70 |
| 2015 | 5.97 | 18.39 | 10.00 |
| 2016 | 7.13 | 15.95 | 8.70 |
| 2017 | 7.90 | 15.17 | 14.46 |
| 2018 | 6.66 | 17.25 | 10.17 |
| 2019 | 9.22 | 12.50 | 4.76 |