| Year | Protected | Not Protected | Protected % |
| 2015 | 12 | 22 | 35.29 |
| 2014 | 5 | 29 | 14.71 |
| 2020 | 34 | 0 | 100.00 |
| 2013 | 0 | 34 | 0.00 |
| 2019 | 34 | 0 | 100.00 |
| 2024 | 0 | 34 | 0.00 |
| 2018 | 34 | 0 | 100.00 |
| 2021 | 2 | 32 | 5.88 |
| 2022 | 9 | 25 | 26.47 |
| 2016 | 7 | 27 | 20.59 |
| 2017 | 9 | 25 | 26.47 |
| 2023 | 2 | 32 | 5.88 |
| Totals | 148 | 260 | 36.27 |