| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 27.21 | 26.19 | 27.27 |
| 2008 | 25.87 | 37.21 | 28.57 |
| 2009 | 17.68 | 45.83 | 14.29 |
| 2010 | 21.06 | 40.41 | 15.22 |
| 2011 | 21.96 | 34.01 | 22.00 |
| 2012 | 13.52 | 37.41 | 23.15 |
| 2013 | 13.00 | 29.93 | 27.27 |
| 2014 | 12.34 | 33.80 | 36.36 |
| 2015 | 16.67 | 23.29 | 35.90 |
| 2016 | 22.34 | 19.05 | 7.69 |
| 2017 | 24.54 | 44.79 | 0.00 |
| 2018 | 25.73 | 48.39 | 100.00 |