| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 16 |
1.5%
|
| 2 | Mild | 10 |
0.9%
|
| 3 | Moderate | 25 |
2.3%
|
| 4 | Severe | 217 |
20.4%
|
| 5 | Extreme | 796 |
74.8%
|
| Sysmiss | 3353 |