| Year | Protected | Not Protected | Protected % |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 30 | 4 | 88.24 |
| 2015 | 20 | 14 | 58.82 |
| 2016 | 35 | 0 | 100.00 |
| 2017 | 0 | 36 | 0.00 |
| 2018 | 1 | 36 | 2.70 |
| 2019 | 0 | 38 | 0.00 |
| 2020 | 0 | 39 | 0.00 |
| 2021 | 0 | 30 | 0.00 |
| 2022 | 0 | 41 | 0.00 |
| 2023 | 2 | 40 | 4.76 |
| 2024 | 2 | 40 | 4.76 |
| 2025 | 0 | 42 | 0.00 |
| Totals | 90 | 393 | 18.63 |