| Value | Category | Cases | |
|---|---|---|---|
| 1 | Light | 243 |
13.2%
|
| 2 | Moderatee | 817 |
44.2%
|
| 3 | Severe | 786 |
42.6%
|
| 9 | 1 |
0.1%
|
|
| Sysmiss | 17991 |