| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 7 |
0.6%
|
| 2 | Mild | 8 |
0.7%
|
| 3 | Moderate | 60 |
5.3%
|
| 4 | Severe | 419 |
37.3%
|
| 5 | Extreme | 628 |
56%
|
| Sysmiss | 3295 |