| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 18.15 | 30.43 | 18.03 |
| 2008 | 12.63 | 31.57 | 16.88 |
| 2009 | 14.08 | 39.44 | 23.81 |
| 2010 | 13.85 | 38.73 | 32.77 |
| 2011 | 10.07 | 35.24 | 30.08 |
| 2012 | 14.75 | 48.23 | 25.76 |
| 2013 | 11.98 | 41.09 | 34.78 |
| 2014 | 15.50 | 39.42 | 37.10 |
| 2015 | 13.74 | 34.97 | 20.00 |
| 2016 | 16.20 | 34.10 | 25.00 |
| 2017 | 16.76 | 33.51 | 37.50 |
| 2018 | 14.80 | 33.68 | 22.64 |
| 2019 | 18.93 | 36.46 | 8.11 |
| 2020 | 14.29 | 12.50 | 100.00 |
| 2021 | 40.00 | 0.00 | 0.00 |