Possibility of risk | Probability | Risk standard |
Very High | ≥1/2 | 10 |
| 1/3 | 9 |
High | ≥1/8 | 8 |
| 1/20 | 7 |
Medium | 1/80 | 6 |
| 1/400 | 5 |
| 1/2000 | 4 |
Low | >1/15,000 | 3 |
Very Low | 1/15,000 | 2 |
Super Low | 1/150,000 | 1 |