| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 5 |
0.5%
|
| 2 | Mild | 8 |
0.8%
|
| 3 | Moderate | 61 |
6.2%
|
| 4 | Severe | 499 |
51%
|
| 5 | Extreme | 406 |
41.5%
|
| Sysmiss | 2959 |