| Year | Protected | Not Protected | Protected % |
| 2001-02 | 0 | 14 | 0.00 |
| 2002-03 | 2 | 13 | 13.33 |
| 2003-04 | 6 | 10 | 37.50 |
| 2004-05 | 3 | 14 | 17.65 |
| 2006-07 | 0 | 2 | 0.00 |
| 2007-08 | 1 | 1 | 50.00 |
| 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 |
| Totals | 12 | 66 | 15.38 |