| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (spontaneous) | 1 |
0.3%
|
| -8 | Refusal (spontaneous) | 4 |
1.1%
|
| -7 | Does Not Apply (spontaneous) | 0 |
0%
|
| 1 | Yes | 29 |
8.1%
|
| 2 | No | 323 |
90.5%
|