| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 150 |
7.7%
|
| 2 | Mild | 511 |
26.1%
|
| 3 | Moderate | 632 |
32.3%
|
| 4 | Severe | 574 |
29.3%
|
| 5 | Extreme | 90 |
4.6%
|
| Sysmiss | 1981 |