| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 232 |
7.5%
|
| 1 | Profit | 991 |
31.9%
|
| 2 | Loss | 336 |
10.8%
|
| 3 | Zero profit | 1546 |
49.8%
|