| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
40%
|
| 7 | 1 |
5%
|
|
| 15 | 1 |
5%
|
|
| 20 | 1 |
5%
|
|
| 30 | 1 |
5%
|
|
| 35 | 3 |
15%
|
|
| 43 | 1 |
5%
|
|
| 45 | 1 |
5%
|
|
| 75 | 1 |
5%
|
|
| 80 | 1 |
5%
|
|
| 100 | 1 |
5%
|
|
| Sysmiss | 94 |