| Value | Category | Cases | |
|---|---|---|---|
| -1000 | Doesn’t apply (SPONTANEOUS) | 144 |
30.4%
|
| -9 | Don’t know (SPONTANEOUS) | 4 |
0.8%
|
| 1 | yes | 95 |
20.1%
|
| 2 | no | 230 |
48.6%
|
| Sysmiss | 198 |