| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 25 |
2.5%
|
| 2 | Mild | 177 |
18%
|
| 3 | Moderate | 411 |
41.7%
|
| 4 | Severe | 338 |
34.3%
|
| 5 | Extreme | 35 |
3.5%
|
| Sysmiss | 2952 |