| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
8%
|
| 5 | 2 |
8%
|
|
| 7 | 2 |
8%
|
|
| 14 | 4 |
16%
|
|
| 30 | 7 |
28%
|
|
| 45 | 3 |
12%
|
|
| 60 | 2 |
8%
|
|
| 90 | 2 |
8%
|
|
| 180 | 1 |
4%
|
|
| Sysmiss | 125 |