| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | -0.36 | -0.28 |
| 2008 | -0.42 | -0.35 |
| 2009 | -0.40 | -0.38 |
| 2010 | -0.38 | -0.40 |
| 2012 | -0.51 | -0.38 |
| 2013 | -0.39 | -0.24 |
| 2014 | -0.46 | -0.22 |
| 2015 | -0.35 | -0.04 |
| 2016 | -0.31 | -0.13 |
| 2017 | -0.33 | -0.19 |
| 2018 | -0.47 | -0.09 |
| 2019 | -0.50 | -0.33 |
| 2020 | -0.67 | -0.31 |
| 2021 | -0.33 | -0.26 |