| Value | Category | Cases | |
|---|---|---|---|
| -1000 | Does not apply (SPONTANEOUS) | 36 |
8.1%
|
| -9 | Don’t know (SPONTANEOUS) | 0 |
0%
|
| 1 | yes | 218 |
48.8%
|
| 2 | No | 193 |
43.2%
|
| Sysmiss | 224 |