| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 63 |
6.4%
|
| 2 | Mild | 350 |
35.6%
|
| 3 | Moderate | 404 |
41.1%
|
| 4 | Severe | 128 |
13%
|
| 5 | Extreme | 39 |
4%
|
| Sysmiss | 2954 |