| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2928 |
66.4%
|
| 2 | Mild | 605 |
13.7%
|
| 3 | Moderate | 520 |
11.8%
|
| 4 | Severe | 314 |
7.1%
|
| 5 | Extreme | 40 |
0.9%
|
| Sysmiss | 10 |