| Year | Right Handed | Left Handed |
|---|---|---|
| 2008 | 9.57 | 5.88 |
| 2009 | 7.40 | 7.67 |
| 2010 | 7.36 | 6.79 |
| 2011 | 8.08 | 6.31 |
| 2012 | 7.57 | 7.05 |
| 2013 | 12.11 | 10.68 |
| 2014 | 9.47 | 7.00 |
| 2015 | 11.69 | 10.90 |
| 2016 | 10.60 | 10.86 |
| 2017 | 11.42 | 15.24 |
| 2018 | 10.19 | 12.24 |
| 2019 | 11.36 | 14.29 |
| 2020 | 12.92 | 9.95 |
| 2021 | 7.21 | 7.14 |
| 2022 | 11.11 | 18.56 |