| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | 7.69 | 9.30 |
| 2008 | 7.22 | 6.90 |
| 2009 | 12.61 | 15.75 |
| 2010 | 14.90 | 15.66 |
| 2011 | 15.74 | 19.41 |
| 2012 | 12.43 | 11.76 |
| 2013 | 18.54 | 13.57 |
| 2014 | 19.55 | 13.02 |
| 2015 | 14.44 | 11.85 |
| 2016 | 14.77 | 12.38 |
| 2017 | 15.33 | 14.13 |
| 2018 | 16.46 | 14.89 |
| 2019 | 14.10 | 14.50 |
| 2020 | 14.86 | 10.43 |
| 2021 | 10.12 | 10.99 |
| 2022 | 5.26 | 10.71 |