| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2007 | -20.05 | -56.10 | -24.85 |
| 2008 | -19.27 | -51.77 | -25.58 |
| 2009 | -18.16 | -48.69 | -26.30 |
| 2010 | -18.28 | -48.62 | -26.75 |
| 2011 | -18.51 | -53.13 | -26.94 |
| 2012 | -17.13 | -50.05 | -26.69 |
| 2013 | -16.92 | -49.37 | -28.35 |
| 2014 | -19.02 | -49.74 | -28.83 |
| 2015 | -18.60 | -48.91 | -27.91 |
| 2016 | -17.07 | -49.66 | -26.78 |
| 2017 | -19.42 | -47.62 | -28.79 |
| 2018 | -17.80 | -47.80 | -28.16 |
| 2019 | -19.99 | -48.29 | -28.10 |
| 2020 | -20.41 | -49.67 | -29.11 |
| 2021 | -21.48 | -51.82 | -30.65 |