| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 29.01 | 36.36 | 22.50 |
| 2009 | 18.35 | 34.78 | 38.89 |
| 2010 | 27.93 | 20.55 | 31.03 |
| 2011 | 16.14 | 13.19 | 29.27 |
| 2012 | 31.13 | 23.33 | 18.18 |
| 2013 | 10.68 | 18.37 | 16.67 |
| 2014 | 13.06 | 29.85 | 22.22 |
| 2015 | 14.47 | 10.20 | 17.39 |
| 2016 | 17.65 | 23.53 | 11.11 |
| 2017 | 12.75 | 26.92 | 21.05 |
| 2018 | 18.92 | 26.61 | 19.05 |