| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
13.3%
|
| 500 | 1 |
6.7%
|
|
| 700 | 2 |
13.3%
|
|
| 750 | 1 |
6.7%
|
|
| 1000 | 1 |
6.7%
|
|
| 1300 | 1 |
6.7%
|
|
| 1500 | 2 |
13.3%
|
|
| 1750 | 1 |
6.7%
|
|
| 2000 | 1 |
6.7%
|
|
| 2500 | 1 |
6.7%
|
|
| 3000 | 1 |
6.7%
|
|
| 5000 | 1 |
6.7%
|
|
| Sysmiss | 99 |