| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | -0.98 | -1.09 |
| 2008 | -1.03 | -1.18 |
| 2009 | -1.30 | -1.39 |
| 2010 | -1.28 | -1.34 |
| 2012 | -1.27 | -1.27 |
| 2013 | -1.25 | -1.27 |
| 2014 | -1.26 | -1.28 |
| 2015 | -1.17 | -1.19 |
| 2016 | -1.31 | -1.36 |
| 2017 | -1.33 | -1.35 |
| 2018 | -1.56 | -1.57 |
| 2019 | -1.52 | -1.52 |
| 2020 | -1.25 | -1.29 |
| 2021 | -1.24 | -1.24 |