| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 543 |
5.1%
|
| 1 | Profit | 4145 |
38.9%
|
| 2 | Loss | 2269 |
21.3%
|
| 3 | Zero profit | 3710 |
34.8%
|
| Sysmiss | 5 |