| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
15.8%
|
| 30 | 2 |
10.5%
|
|
| 40 | 1 |
5.3%
|
|
| 50 | 2 |
10.5%
|
|
| 80 | 1 |
5.3%
|
|
| 100 | 2 |
10.5%
|
|
| 120 | 2 |
10.5%
|
|
| 200 | 2 |
10.5%
|
|
| 450 | 1 |
5.3%
|
|
| 900 | 1 |
5.3%
|
|
| 5800 | 1 |
5.3%
|
|
| 6000 | 1 |
5.3%
|
|
| Sysmiss | 138 |