| Year | Protected | Not Protected | Protected % |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 14 | 20 | 41.18 |
| 2015 | 2 | 32 | 5.88 |
| 2016 | 0 | 35 | 0.00 |
| 2017 | 5 | 31 | 13.89 |
| 2018 | 27 | 10 | 72.97 |
| 2019 | 37 | 1 | 97.37 |
| 2020 | 38 | 1 | 97.44 |
| 2021 | 5 | 25 | 16.67 |
| 2022 | 41 | 0 | 100.00 |
| 2023 | 9 | 33 | 21.43 |
| 2024 | 35 | 7 | 83.33 |
| 2025 | 4 | 38 | 9.52 |
| Totals | 217 | 266 | 44.93 |