| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 962 |
87.2%
|
| 2 | Mild | 65 |
5.9%
|
| 3 | Moderate | 56 |
5.1%
|
| 4 | Severe | 16 |
1.5%
|
| 5 | Extreme | 4 |
0.4%
|
| Sysmiss | 3314 |