| Year | Hard | Breaking | Offspeed |
|---|---|---|---|
| 2008 | 15.33 | 14.52 | 22.58 |
| 2009 | 18.17 | 20.18 | 23.57 |
| 2010 | 20.36 | 20.41 | 20.69 |
| 2011 | 19.93 | 17.41 | 18.39 |
| 2012 | 22.90 | 23.75 | 18.85 |
| 2013 | 18.20 | 20.65 | 24.59 |
| 2014 | 16.10 | 24.42 | 13.68 |
| 2015 | 18.57 | 25.52 | 20.59 |
| 2016 | 20.38 | 25.84 | 37.14 |
| 2017 | 21.03 | 25.27 | 25.62 |
| 2018 | 22.97 | 25.67 | 29.88 |
| 2019 | 23.35 | 22.06 | 28.81 |
| 2020 | 21.58 | 30.88 | 18.33 |
| 2021 | 18.84 | 23.04 | 20.78 |