| Year | In Zone | Out of Zone |
|---|---|---|
| 2007 | 38.71 | 61.29 |
| 2008 | 50.90 | 49.10 |
| 2009 | 42.42 | 57.58 |
| 2010 | 46.10 | 53.90 |
| 2011 | 45.00 | 55.00 |
| 2012 | 40.98 | 59.02 |
| 2013 | 45.73 | 54.27 |
| 2014 | 47.10 | 52.90 |
| 2015 | 43.18 | 56.82 |
| 2016 | 41.84 | 58.16 |
| 2017 | 31.72 | 68.28 |
| 2018 | 37.20 | 62.80 |
| 2019 | 36.71 | 63.29 |
| 2020 | 26.06 | 73.94 |
| 2021 | 41.96 | 58.04 |