| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 15 |
1.6%
|
| 2 | Mild | 49 |
5.2%
|
| 3 | Moderate | 196 |
20.9%
|
| 4 | Severe | 528 |
56.2%
|
| 5 | Extreme | 152 |
16.2%
|
| Sysmiss | 2998 |