| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 278 |
71.6%
|
| 2 | mild | 53 |
13.7%
|
| 3 | moderate | 39 |
10.1%
|
| 4 | severe | 15 |
3.9%
|
| 5 | extreme | 3 |
0.8%
|
| Sysmiss | 4277 |