| Year | Protected | Not Protected | Protected % |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 0 | 34 | 0.00 |
| 2015 | 6 | 28 | 17.65 |
| 2016 | 35 | 0 | 100.00 |
| 2017 | 13 | 23 | 36.11 |
| 2018 | 37 | 0 | 100.00 |
| 2019 | 13 | 25 | 34.21 |
| 2020 | 4 | 35 | 10.26 |
| 2021 | 0 | 30 | 0.00 |
| 2022 | 0 | 41 | 0.00 |
| 2023 | 0 | 42 | 0.00 |
| 2024 | 0 | 42 | 0.00 |
| Totals | 108 | 366 | 22.78 |