| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 15 |
0.8%
|
| 2 | Mild | 26 |
1.3%
|
| 3 | Moderate | 101 |
5.2%
|
| 4 | Severe | 667 |
34.1%
|
| 5 | Extreme | 1147 |
58.6%
|
| Sysmiss | 1982 |