| Year | Protected | Not Protected | Protected % |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 33 | 1 | 97.06 |
| 2015 | 33 | 1 | 97.06 |
| 2016 | 34 | 1 | 97.14 |
| 2017 | 36 | 0 | 100.00 |
| 2018 | 37 | 0 | 100.00 |
| 2019 | 38 | 0 | 100.00 |
| 2020 | 39 | 0 | 100.00 |
| 2021 | 4 | 26 | 13.33 |
| 2022 | 41 | 0 | 100.00 |
| 2023 | 40 | 2 | 95.24 |
| 2024 | 21 | 21 | 50.00 |
| Totals | 356 | 85 | 80.73 |