| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 11.60 | 16.16 | 22.12 |
| 2008 | 8.83 | 15.79 | 14.75 |
| 2009 | 7.23 | 13.08 | 15.19 |
| 2010 | 7.35 | 11.83 | 14.33 |
| 2011 | 7.19 | 12.20 | 11.47 |
| 2012 | 9.58 | 15.22 | 8.73 |
| 2013 | 9.25 | 14.75 | 16.47 |
| 2014 | 9.63 | 16.03 | 17.61 |
| 2015 | 8.53 | 17.61 | 17.89 |
| 2016 | 8.29 | 16.21 | 13.96 |
| 2017 | 8.82 | 17.79 | 15.11 |
| 2018 | 8.48 | 16.28 | 22.68 |