| 5 | 4 | 3 | 2 | 1 | total | 3 or above | |
| 2007 | 23 | 17 | 13 | 5 | 1 | 59 | 90% |
| 2006 | 18 | 29 | 16 | 2 | 2 | 67 | 95% |
| 2005 | 11 | 17 | 8 | 7 | 3 | 46 | 79% |
| 2004 | 14 | 24 | 19 | 6 | 1 | 64 | 89% |
| 2003 | 14 | 22 | 10 | 7 | 53 | 87% | |
| 2002 | 17 | 26 | 36 | 16 | 2 | 97 | 81% |
| 2001 | 14 | 28 | 12 | 11 | 65 | 83% | |
| 2000 | 9 | 22 | 14 | 2 | 1 | 48 | 94% |
| 1999 | 12 | 23 | 16 | 13 | 1 | 65 | 78% |
| 1998 | 10 | 11 | 12 | 3 | 1 | 37 | 89% |
| 142 | 219 | 156 | 72 | 12 | 601 | Total Exams | |
| 517 | Exams Passed | ||||||
| 86% | Percentage Passed |