| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2550 |
64.9%
|
| 2 | Mild | 679 |
17.3%
|
| 3 | Moderate | 490 |
12.5%
|
| 4 | Severe | 201 |
5.1%
|
| 5 | Extreme | 12 |
0.3%
|
| Sysmiss | 6 |