| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 16.56 | 50.00 | 18.18 |
| 2008 | 20.90 | 42.48 | 25.58 |
| 2009 | 29.96 | 33.78 | 25.77 |
| 2010 | 22.42 | 17.86 | 28.95 |
| 2011 | 22.04 | 30.93 | 24.24 |
| 2012 | 18.18 | 0.00 | 0.00 |
| 2013 | 16.94 | 37.50 | 0.00 |
| 2014 | 21.16 | 31.43 | 20.51 |
| 2015 | 19.90 | 35.14 | 22.92 |
| 2016 | 21.94 | 24.78 | 37.01 |
| 2017 | 30.77 | 32.50 | 28.57 |
| 2018 | 23.77 | 48.21 | 35.71 |