| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2010 | -14.54 | -47.60 | -29.83 |
| 2011 | -13.67 | -50.51 | -25.32 |
| 2012 | -13.50 | -47.53 | -27.61 |
| 2013 | -13.62 | -50.06 | -26.34 |
| 2014 | -13.89 | -47.85 | -26.58 |
| 2015 | -12.80 | -44.89 | -26.42 |
| 2016 | -12.56 | -33.49 | -26.23 |
| 2017 | -12.88 | -39.69 | -26.61 |
| 2018 | -14.03 | -39.10 | -27.41 |
| 2019 | -16.29 | -45.27 | -29.29 |