| Value | Category | Cases | |
|---|---|---|---|
| -99 | NA | 6987 |
93.1%
|
| -98 | Don't know | 51 |
0.7%
|
| -97 | Refused | 8 |
0.1%
|
| 1 | None of them | 125 |
1.7%
|
| 2 | Some of them | 277 |
3.7%
|
| 3 | Most of them | 50 |
0.7%
|
| 4 | All of them | 4 |
0.1%
|