| Year | Protected | Not Protected | Protected % |
| 2013 | 4 | 29 | 12.12 |
| 2014 | 34 | 0 | 100.00 |
| 2015 | 32 | 2 | 94.12 |
| 2016 | 35 | 0 | 100.00 |
| 2017 | 23 | 13 | 63.89 |
| 2018 | 30 | 7 | 81.08 |
| 2019 | 38 | 0 | 100.00 |
| 2020 | 39 | 0 | 100.00 |
| 2021 | 5 | 25 | 16.67 |
| 2022 | 41 | 0 | 100.00 |
| 2023 | 41 | 1 | 97.62 |
| 2024 | 42 | 0 | 100.00 |
| 2025 | 40 | 2 | 95.24 |
| Totals | 404 | 79 | 83.64 |