| Year | Protected | Not Protected | Protected % |
| 2010 | 0 | 32 | 0.00 |
| 2011 | 0 | 32 | 0.00 |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 33 | 0 | 100.00 |
| 2014 | 34 | 0 | 100.00 |
| 2015 | 34 | 0 | 100.00 |
| 2016 | 35 | 0 | 100.00 |
| 2017 | 36 | 0 | 100.00 |
| 2018 | 37 | 0 | 100.00 |
| 2019 | 38 | 0 | 100.00 |
| 2020 | 39 | 0 | 100.00 |
| 2021 | 3 | 27 | 10.00 |
| 2022 | 39 | 2 | 95.12 |
| 2023 | 11 | 31 | 26.19 |
| 2024 | 18 | 24 | 42.86 |
| 2025 | 39 | 3 | 92.86 |
| Totals | 396 | 184 | 68.28 |