| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
2%
|
| -7 | Does not apply | 1 |
1%
|
| 0 | No losses | 94 |
94%
|
| 1 | 2 |
2%
|
|
| 5 | 1 |
1%
|
|
| Sysmiss | 277 |