| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3029 |
68.7%
|
| 2 | Mild | 741 |
16.8%
|
| 3 | Moderate | 420 |
9.5%
|
| 4 | Severe | 188 |
4.3%
|
| 5 | Extreme | 30 |
0.7%
|
| Sysmiss | 9 |