| 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 | 26.32 | 16.16 | 11.25 |
| 2011 | 30.98 | 19.85 | 16.00 |
| 2012 | 25.00 | 17.97 | 20.21 |
| 2013 | 21.01 | 18.37 | 15.65 |
| 2014 | 22.09 | 12.24 | 10.98 |
| 2015 | 20.52 | 11.82 | 12.50 |
| 2016 | 24.76 | 16.84 | 12.80 |
| 2017 | 23.14 | 23.19 | 20.31 |
| 2018 | 22.65 | 27.41 | 18.52 |
| 2019 | 27.36 | 25.00 | 15.56 |