| Year | Protected | Not Protected | Protected % |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 31 | 2 | 93.94 |
| 2014 | 28 | 6 | 82.35 |
| 2015 | 0 | 34 | 0.00 |
| 2016 | 0 | 35 | 0.00 |
| 2017 | 0 | 36 | 0.00 |
| 2018 | 0 | 37 | 0.00 |
| 2019 | 26 | 12 | 68.42 |
| 2020 | 0 | 39 | 0.00 |
| 2021 | 0 | 30 | 0.00 |
| 2022 | 0 | 41 | 0.00 |
| 2023 | 0 | 42 | 0.00 |
| 2024 | 0 | 42 | 0.00 |
| Totals | 85 | 389 | 17.93 |