| Year | Protected | Not Protected | Protected % |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 1 | 33 | 2.94 |
| 2015 | 4 | 30 | 11.76 |
| 2016 | 34 | 1 | 97.14 |
| 2017 | 32 | 4 | 88.89 |
| 2018 | 29 | 8 | 78.38 |
| 2019 | 5 | 33 | 13.16 |
| 2020 | 0 | 39 | 0.00 |
| 2021 | 0 | 30 | 0.00 |
| 2022 | 0 | 41 | 0.00 |
| 2023 | 0 | 42 | 0.00 |
| 2024 | 0 | 42 | 0.00 |
| Totals | 105 | 369 | 22.15 |