| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.5%
|
| -7 | Does not apply | 4 |
5.9%
|
| 0 | No losses | 59 |
86.8%
|
| 1 | 2 |
2.9%
|
|
| 2 | 2 |
2.9%
|
|
| Sysmiss | 292 |