| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't Apply (spontaneous) | 3 |
1.2%
|
| 1 | Yes | 29 |
11.6%
|
| 2 | No | 218 |
87.2%
|