| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2010 | -1.83 | -1.80 | -1.91 |
| 2011 | -1.80 | -1.78 | -1.85 |
| 2012 | -1.76 | -1.74 | -1.86 |
| 2013 | -1.38 | -1.36 | -1.48 |
| 2014 | -1.84 | -1.83 | -1.88 |
| 2015 | -2.19 | -2.23 | -2.32 |
| 2016 | -2.01 | -2.05 | -2.10 |
| 2017 | -1.99 | -1.97 | -2.04 |
| 2018 | -2.11 | -2.09 | -2.20 |
| 2019 | -2.44 | -2.45 | -2.51 |