| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
25%
|
| 12 | 1 |
6.3%
|
|
| 50 | 1 |
6.3%
|
|
| 150 | 2 |
12.5%
|
|
| 200 | 1 |
6.3%
|
|
| 300 | 3 |
18.8%
|
|
| 600 | 1 |
6.3%
|
|
| 1000 | 1 |
6.3%
|
|
| 1500 | 1 |
6.3%
|
|
| 2000 | 1 |
6.3%
|
|
| Sysmiss | 607 |