| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 18.19 | 26.19 | 28.00 |
| 2009 | 15.22 | 29.98 | 30.87 |
| 2010 | 13.60 | 32.56 | 29.86 |
| 2011 | 10.05 | 30.92 | 24.56 |
| 2012 | 8.06 | 27.92 | 28.75 |
| 2013 | 10.05 | 33.58 | 38.03 |
| 2014 | 10.97 | 31.60 | 24.60 |
| 2015 | 6.63 | 41.13 | 44.44 |
| 2016 | 9.66 | 32.28 | 29.41 |
| 2017 | 13.56 | 33.26 | 42.39 |