| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
22.7%
|
| -7 | Does not apply | 2 |
2.3%
|
| 0 | No losses | 59 |
67%
|
| 1 | 2 |
2.3%
|
|
| 5 | 3 |
3.4%
|
|
| 15 | 2 |
2.3%
|
|
| Sysmiss | 1358 |