| Year | Protected | Not Protected | Protected % |
| 2015 | 0 | 34 | 0.00 |
| 2014 | 11 | 23 | 32.35 |
| 2020 | 0 | 34 | 0.00 |
| 2013 | 14 | 20 | 41.18 |
| 2019 | 6 | 28 | 17.65 |
| 2024 | 0 | 34 | 0.00 |
| 2012 | 0 | 34 | 0.00 |
| 2018 | 17 | 17 | 50.00 |
| 2021 | 0 | 34 | 0.00 |
| 2011 | 0 | 34 | 0.00 |
| 2022 | 0 | 34 | 0.00 |
| 2016 | 0 | 34 | 0.00 |
| 2017 | 8 | 26 | 23.53 |
| 2023 | 0 | 34 | 0.00 |
| Totals | 56 | 420 | 11.76 |