| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | 13.94 | 23.17 | 15.38 |
| 2008 | 24.36 | 26.67 | 20.51 |
| 2009 | 27.18 | 22.86 | 14.77 |
| 2010 | 25.94 | 16.00 | 10.84 |
| 2011 | 29.82 | 19.55 | 16.23 |
| 2012 | 24.40 | 17.69 | 20.20 |
| 2013 | 20.77 | 18.18 | 14.88 |
| 2014 | 22.73 | 12.75 | 10.92 |
| 2015 | 20.52 | 11.82 | 12.50 |
| 2016 | 24.76 | 16.84 | 12.80 |
| 2017 | 23.91 | 13.04 | 26.32 |