| Year | In Zone | Out of Zone |
|---|---|---|
| 2007 | 48.55 | 51.45 |
| 2008 | 49.95 | 50.05 |
| 2009 | 50.43 | 49.57 |
| 2010 | 45.65 | 54.35 |
| 2012 | 57.09 | 42.91 |
| 2013 | 51.17 | 48.83 |
| 2014 | 51.40 | 48.60 |
| 2015 | 51.05 | 48.95 |
| 2016 | 50.42 | 49.58 |
| 2017 | 56.55 | 43.45 |
| 2018 | 52.25 | 47.75 |
| 2019 | 54.20 | 45.80 |
| 2020 | 56.27 | 43.73 |
| 2021 | 59.68 | 40.32 |
| 2022 | 51.14 | 48.86 |