| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 43.75 | 40.00 | 41.18 |
| 2009 | 41.72 | 37.53 | 44.23 |
| 2010 | 42.15 | 36.36 | 45.02 |
| 2011 | 44.47 | 30.87 | 45.07 |
| 2012 | 43.20 | 34.40 | 49.23 |
| 2013 | 44.34 | 44.55 | 54.29 |
| 2014 | 44.54 | 35.89 | 43.20 |
| 2015 | 42.68 | 33.79 | 44.13 |
| 2016 | 42.63 | 31.95 | 44.02 |
| 2017 | 43.56 | 37.17 | 47.37 |
| 2018 | 44.07 | 34.51 | 43.50 |