| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | 12.32 | 19.51 |
| 2008 | 22.49 | 25.57 |
| 2009 | 21.36 | 27.89 |
| 2010 | 21.88 | 24.13 |
| 2011 | 24.03 | 26.23 |
| 2012 | 21.83 | 23.48 |
| 2013 | 20.00 | 18.94 |
| 2014 | 16.19 | 18.11 |
| 2015 | 12.25 | 19.80 |
| 2016 | 17.87 | 21.54 |
| 2017 | 23.36 | 21.37 |
| 2018 | 20.36 | 26.73 |
| 2019 | 27.97 | 18.48 |