| Value | Category | Cases | |
|---|---|---|---|
| -9 | Break off | 1 |
0.1%
|
| -7 | Legal skip | 593 |
57.2%
|
| -2 | Refuse to answer | 6 |
0.6%
|
| -1 | Don't know | 45 |
4.3%
|
| 0 | Not mentioned | 262 |
25.3%
|
| 1 | Mentioned | 129 |
12.5%
|