| Year | Protected | Not Protected | Protected % |
| 2002-03 | 0 | 15 | 0.00 |
| 2003-04 | 1 | 15 | 6.25 |
| 2004-05 | 1 | 16 | 5.88 |
| 2006-07 | 0 | 2 | 0.00 |
| 2007-08 | 0 | 2 | 0.00 |
| 2010-11 | 0 | 2 | 0.00 |
| 2011-12 | 0 | 2 | 0.00 |
| 2012-13 | 0 | 2 | 0.00 |
| 2013-14 | 0 | 2 | 0.00 |
| 2014-15 | 0 | 2 | 0.00 |
| 2015-16 | 0 | 2 | 0.00 |
| 2016-17 | 0 | 2 | 0.00 |
| 2017-18 | 0 | 2 | 0.00 |
| 2019-20 | 0 | 2 | 0.00 |
| 2020-21 | 0 | 3 | 0.00 |
| Totals | 2 | 71 | 2.74 |