| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 5 |
0.2%
|
| 2 | Mild | 19 |
0.9%
|
| 3 | Moderate | 116 |
5.2%
|
| 4 | Severe | 647 |
29%
|
| 5 | Extreme | 1445 |
64.7%
|
| Sysmiss | 2185 |