| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to respond | 0 |
0%
|
| -98 | Don't know | 13 |
33.3%
|
| 0 | No | 10 |
25.6%
|
| 1 | Yes | 16 |
41%
|
| 11 | .Z | 906 |