| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | -13.64 | -45.43 | -26.34 |
| 2008 | -13.22 | -42.05 | -25.02 |
| 2009 | -11.16 | -44.29 | -26.88 |
| 2010 | -12.16 | -43.12 | -25.29 |
| 2011 | -12.25 | -42.97 | -23.37 |
| 2012 | -11.57 | -44.05 | -23.78 |
| 2013 | -12.02 | -40.04 | -24.83 |
| 2014 | -13.76 | -38.70 | -27.03 |
| 2015 | -12.61 | -36.02 | -25.22 |
| 2016 | -12.60 | -35.48 | -27.33 |
| 2017 | -12.31 | -35.02 | -25.78 |
| 2018 | -9.90 | -38.19 | -24.66 |
| 2019 | -9.95 | -36.49 | -24.44 |