| Year | Protected | Not Protected | Protected % |
| 2012 | 1 | 32 | 3.03 |
| 2013 | 2 | 31 | 6.06 |
| 2014 | 0 | 34 | 0.00 |
| 2015 | 0 | 34 | 0.00 |
| 2016 | 2 | 33 | 5.71 |
| 2017 | 0 | 36 | 0.00 |
| 2018 | 7 | 30 | 18.92 |
| 2019 | 38 | 0 | 100.00 |
| 2020 | 10 | 29 | 25.64 |
| 2021 | 1 | 29 | 3.33 |
| 2022 | 7 | 34 | 17.07 |
| 2023 | 0 | 42 | 0.00 |
| 2024 | 0 | 42 | 0.00 |
| Totals | 68 | 406 | 14.35 |