| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.5%
|
| -7 | Does not apply (spontaneous) | 35 |
6%
|
| 1 | Yes | 284 |
48.9%
|
| 2 | No | 259 |
44.6%
|