| Value | Category | Cases | |
|---|---|---|---|
| 1 | most severe | 1297 |
60.6%
|
| 2 | second most severe | 569 |
26.6%
|
| 3 | third most severe | 268 |
12.5%
|
| 4 | 1 |
0%
|
|
| 7 | 4 |
0.2%
|
|
| 9 | 2 |
0.1%
|
|
| Sysmiss | 287 |