| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | 15.73 | 21.43 |
| 2008 | 21.61 | 22.03 |
| 2009 | 23.92 | 20.34 |
| 2010 | 21.85 | 25.96 |
| 2011 | 22.51 | 21.26 |
| 2012 | 21.75 | 18.12 |
| 2013 | 23.87 | 34.45 |
| 2014 | 26.10 | 31.75 |
| 2015 | 27.80 | 25.00 |
| 2016 | 29.24 | 28.83 |
| 2017 | 31.85 | 33.33 |
| 2018 | 22.09 | 36.36 |
| 2019 | 24.76 | 35.53 |