| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 904 |
91.6%
|
| 2 | Mild | 55 |
5.6%
|
| 3 | Moderate | 13 |
1.3%
|
| 4 | Severe | 10 |
1%
|
| 5 | Extreme | 5 |
0.5%
|
| Sysmiss | 2951 |