| Year | Protected | Not Protected | Protected % |
| 2012 | 0 | 33 | 0.00 |
| 2013 | 11 | 22 | 33.33 |
| 2014 | 16 | 18 | 47.06 |
| 2015 | 35 | -1 | 102.94 |
| 2016 | 35 | 0 | 100.00 |
| 2017 | 27 | 9 | 75.00 |
| 2018 | 1 | 36 | 2.70 |
| 2019 | 0 | 38 | 0.00 |
| 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 | 125 | 349 | 26.37 |