| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 47 |
10.3%
|
| -88 | Refused | 2 |
0.4%
|
| 0 | No | 86 |
18.9%
|
| 1 | Yes | 320 |
70.3%
|
| Missing value | 306 |