| Value | Category | Cases | |
|---|---|---|---|
| 1 | most severe | 73 |
24.6%
|
| 2 | second most severe | 162 |
54.5%
|
| 3 | third most severe | 60 |
20.2%
|
| 6 | 1 |
0.3%
|
|
| 7 | 1 |
0.3%
|
|
| Sysmiss | 2131 |