| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
5.6%
|
| 0 | 2 |
11.1%
|
|
| 100 | 1 |
5.6%
|
|
| 250 | 1 |
5.6%
|
|
| 300 | 1 |
5.6%
|
|
| 350 | 1 |
5.6%
|
|
| 400 | 1 |
5.6%
|
|
| 500 | 4 |
22.2%
|
|
| 700 | 1 |
5.6%
|
|
| 1000 | 5 |
27.8%
|
|
| Sysmiss | 228 |