| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
2.2%
|
| -7 | Does not apply (spontaneous) | 71 |
39.4%
|
| 0 | 38 |
21.1%
|
|
| 14 | 1 |
0.6%
|
|
| 23 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 70 | 1 |
0.6%
|
|
| 80 | 1 |
0.6%
|
|
| 100 | 62 |
34.4%
|
|
| Sysmiss | 180 |