| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 32 |
3.3%
|
| 2 | Mild | 30 |
3%
|
| 3 | Moderate | 106 |
10.8%
|
| 4 | Severe | 556 |
56.5%
|
| 5 | Extreme | 260 |
26.4%
|
| Sysmiss | 2954 |