| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
45%
|
| 10 | 1 |
5%
|
|
| 20 | 1 |
5%
|
|
| 35 | 1 |
5%
|
|
| 50 | 1 |
5%
|
|
| 100 | 2 |
10%
|
|
| 300 | 1 |
5%
|
|
| 2050 | 1 |
5%
|
|
| 3000 | 1 |
5%
|
|
| 4000 | 1 |
5%
|
|
| 4200 | 1 |
5%
|
|
| Sysmiss | 115 |