| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.6%
|
| -7 | Does not apply (spontaneous) | 2 |
0.6%
|
| 1 | Yes | 191 |
53.1%
|
| 2 | No | 165 |
45.8%
|