| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | 14.17 | 15.38 |
| 2008 | 18.22 | 20.00 |
| 2009 | 20.48 | 17.36 |
| 2010 | 19.59 | 21.24 |
| 2011 | 12.53 | 18.98 |
| 2012 | 20.14 | 21.85 |
| 2013 | 24.74 | 23.91 |
| 2014 | 24.60 | 26.55 |
| 2015 | 27.41 | 28.15 |
| 2016 | 25.27 | 25.00 |
| 2017 | 25.85 | 15.09 |
| 2018 | 25.34 | 23.53 |
| 2019 | 24.60 | 13.89 |