| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 14 |
1.5%
|
| 2 | Mild | 8 |
0.9%
|
| 3 | Moderate | 47 |
5%
|
| 4 | Severe | 538 |
57.2%
|
| 5 | Extreme | 333 |
35.4%
|
| Sysmiss | 2998 |