| Year | Protected | Not Protected | Protected % |
| 2011 | 0 | 32 | 0.00 |
| 2012 | 2 | 31 | 6.06 |
| 2013 | 17 | 16 | 51.52 |
| 2014 | 7 | 27 | 20.59 |
| 2015 | 10 | 24 | 29.41 |
| 2016 | 10 | 25 | 28.57 |
| 2017 | 4 | 32 | 11.11 |
| 2018 | 17 | 20 | 45.95 |
| 2019 | 5 | 33 | 13.16 |
| 2020 | 4 | 35 | 10.26 |
| 2021 | 3 | 27 | 10.00 |
| 2022 | 41 | 0 | 100.00 |
| 2023 | 30 | 12 | 71.43 |
| 2024 | 4 | 38 | 9.52 |
| Totals | 154 | 352 | 30.43 |