| Multi-Catastrophic |
5
|
10
|
15
|
20
|
25
|
|---|---|---|---|---|---|
| Catastrophic |
4
|
8
|
12
|
16
|
20
|
| Major |
3
|
6
|
9
|
12
|
16
|
| Serious |
2
|
4
|
8
|
8
|
10
|
| Light |
1
|
2
|
3
|
4
|
5
|
| Improbable | Unlikely | Possible | Likely | Probable |
