| Year | Right Handed | Left Handed |
|---|---|---|
| 2007 | 22.70 | 20.83 |
| 2008 | 16.86 | 24.29 |
| 2009 | 24.50 | 27.36 |
| 2010 | 25.59 | 23.92 |
| 2011 | 21.24 | 24.19 |
| 2012 | 21.07 | 22.03 |
| 2013 | 19.19 | 22.17 |
| 2014 | 22.69 | 22.65 |
| 2015 | 23.98 | 25.83 |
| 2016 | 23.39 | 27.29 |
| 2017 | 23.52 | 29.26 |
| 2018 | 21.19 | 19.70 |
| 2019 | 21.14 | 21.96 |
| 2020 | 19.65 | 16.05 |
| 2021 | 20.62 | 20.61 |