| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 834 |
75.4%
|
| 2 | Mild | 132 |
11.9%
|
| 3 | Moderate | 87 |
7.9%
|
| 4 | Severe | 38 |
3.4%
|
| 5 | Extreme | 15 |
1.4%
|
| Sysmiss | 3311 |