| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 1.60 | 2.32 | 23.48 |
| 2009 | -3.71 | -7.75 | -3.66 |
| 2010 | -2.21 | -11.83 | -3.76 |
| 2011 | -0.59 | -9.08 | 1.95 |
| 2012 | -0.77 | -5.98 | -5.70 |
| 2013 | -0.74 | -5.00 | -0.93 |
| 2014 | -4.27 | -11.50 | -7.38 |
| 2015 | -7.92 | -3.05 | -11.68 |
| 2016 | -5.10 | -11.77 | -0.94 |
| 2017 | -10.65 | -15.36 | -5.30 |
| 2018 | -3.56 | -8.64 | -10.06 |
| 2019 | -13.65 | -21.45 | -14.87 |