| Year | Protected | Not Protected | Protected % |
| 2015 | 0 | 34 | 0.00 |
| 2014 | 0 | 34 | 0.00 |
| 2009 | 19 | 15 | 55.88 |
| 2020 | 0 | 34 | 0.00 |
| 2013 | 0 | 34 | 0.00 |
| 2019 | 0 | 34 | 0.00 |
| 2008 | 0 | 34 | 0.00 |
| 2012 | 0 | 34 | 0.00 |
| 2018 | 0 | 34 | 0.00 |
| 2011 | 0 | 34 | 0.00 |
| 2016 | 0 | 34 | 0.00 |
| 2010 | 6 | 27 | 18.18 |
| 2017 | 0 | 34 | 0.00 |
| Totals | 25 | 416 | 5.67 |