| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
18.2%
|
| 0 | 9 |
40.9%
|
|
| 250 | 1 |
4.5%
|
|
| 450 | 1 |
4.5%
|
|
| 600 | 1 |
4.5%
|
|
| 1000 | 2 |
9.1%
|
|
| 2000 | 1 |
4.5%
|
|
| 3000 | 1 |
4.5%
|
|
| 5000 | 1 |
4.5%
|
|
| 8000 | 1 |
4.5%
|
|
| Sysmiss | 130 |