| Year | Protected | Not Protected | Protected % |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 27 | 7 | 79.41 |
| 2015 | 19 | 15 | 55.88 |
| 2016 | 0 | 35 | 0.00 |
| 2017 | 0 | 36 | 0.00 |
| 2018 | 0 | 37 | 0.00 |
| 2019 | 0 | 38 | 0.00 |
| 2020 | 13 | 26 | 33.33 |
| 2021 | 3 | 27 | 10.00 |
| 2022 | 1 | 40 | 2.44 |
| 2023 | 0 | 42 | 0.00 |
| 2024 | 0 | 42 | 0.00 |
| 2025 | 0 | 42 | 0.00 |
| Totals | 63 | 420 | 13.04 |