| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 31 |
3.3%
|
| 2 | Mild | 23 |
2.5%
|
| 3 | Moderate | 59 |
6.3%
|
| 4 | Severe | 376 |
40.2%
|
| 5 | Extreme | 447 |
47.8%
|
| Sysmiss | 3002 |