| Year | Protected | Not Protected | Protected % |
| 2013 | 1 | 32 | 3.03 |
| 2014 | 13 | 21 | 38.24 |
| 2015 | 9 | 25 | 26.47 |
| 2016 | 0 | 35 | 0.00 |
| 2017 | 0 | 36 | 0.00 |
| 2018 | 0 | 37 | 0.00 |
| 2019 | 24 | 14 | 63.16 |
| 2020 | 9 | 30 | 23.08 |
| 2021 | 3 | 27 | 10.00 |
| 2022 | 41 | 0 | 100.00 |
| 2023 | 41 | 1 | 97.62 |
| 2024 | 41 | 1 | 97.62 |
| Totals | 182 | 259 | 41.27 |