| Year | Protected | Not Protected | Protected % |
| 2011 | 0 | 32 | 0.00 |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 0 | 33 | 0.00 |
| 2014 | 0 | 34 | 0.00 |
| 2015 | 0 | 34 | 0.00 |
| 2016 | 2 | 33 | 5.71 |
| 2017 | 32 | 4 | 88.89 |
| 2018 | 14 | 23 | 37.84 |
| 2019 | 5 | 33 | 13.16 |
| 2020 | 38 | 1 | 97.44 |
| 2021 | 3 | 27 | 10.00 |
| 2022 | 21 | 20 | 51.22 |
| 2023 | 6 | 36 | 14.29 |
| 2024 | 0 | 42 | 0.00 |
| Totals | 121 | 385 | 23.91 |