| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 51.13 | 43.71 | 5.16 |
| 2009 | 52.06 | 39.54 | 8.40 |
| 2010 | 49.90 | 39.36 | 10.74 |
| 2011 | 51.06 | 38.53 | 10.41 |
| 2012 | 45.41 | 40.40 | 14.19 |
| 2013 | 43.97 | 44.21 | 11.82 |
| 2014 | 49.09 | 40.52 | 10.39 |
| 2015 | 51.83 | 42.05 | 6.12 |
| 2016 | 48.74 | 43.81 | 7.45 |
| 2017 | 48.36 | 36.69 | 14.95 |