| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 943 |
83.8%
|
| 2 | Mild | 85 |
7.6%
|
| 3 | Moderate | 51 |
4.5%
|
| 4 | Severe | 30 |
2.7%
|
| 5 | Extreme | 16 |
1.4%
|
| Sysmiss | 3292 |