| Year | In Zone | Out of Zone |
|---|---|---|
| 2008 | 16.81 | 22.97 |
| 2009 | 20.37 | 17.98 |
| 2010 | 18.68 | 20.00 |
| 2011 | 15.82 | 13.43 |
| 2012 | 19.11 | 9.92 |
| 2013 | 25.56 | 18.29 |
| 2014 | 23.45 | 23.91 |
| 2015 | 26.67 | 22.13 |
| 2016 | 28.99 | 14.94 |
| 2017 | 22.86 | 22.13 |
| 2018 | 27.23 | 11.93 |
| 2019 | 22.81 | 22.12 |
| 2020 | 16.67 | 26.09 |
| 2021 | 22.04 | 12.96 |