| A range | 90 - 100 |
| B range | 78 - 89 |
| C range | 60 - 77 |
| D range | 40 - 59 |
| Failing | below 40 |
| A range | 85 - 100 |
| B range | 74 - 84 |
| C range | 55 - 73 |
| A range | 83 - 100 |
| B range | 66 - 82 |
| C range | 50 - 65 |
| D range | 40 - 49 |
| Failing | below 40 |
| A range | 90 - 100 |
| B range | 77 - 89 |
| C range | 52 - 76 |
| D range | 40 - 51 |
| Failing | below 40 |
| A range | 90 - 100 |
| B range | 80 - 89 |
| C range | 70 - 79 |
| D range | 60 - 69 |
| Failing | below 60 |