| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (spontaneous) | 1 |
0.3%
|
| -8 | Refusal (spontaneous) | 3 |
0.8%
|
| -7 | Does Not Apply (spontaneous) | 0 |
0%
|
| 1 | Yes | 16 |
4.5%
|
| 2 | No | 337 |
94.4%
|