| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 814 |
86.6%
|
| 2 | Mild | 76 |
8.1%
|
| 3 | Moderate | 18 |
1.9%
|
| 4 | Severe | 15 |
1.6%
|
| 5 | Extreme | 17 |
1.8%
|
| Sysmiss | 2998 |