| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 7 |
21.9%
|
| -1 | Refuse | 2 |
6.3%
|
| 1 | Net income | 20 |
62.5%
|
| 2 | Loss | 3 |
9.4%
|
| Sysmiss | 257 |