| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 989 |
87.9%
|
| 2 | Mild | 77 |
6.8%
|
| 3 | Moderate | 40 |
3.6%
|
| 4 | Severe | 8 |
0.7%
|
| 5 | Extreme | 11 |
1%
|
| Sysmiss | 3292 |