| Value | Category | Cases | |
|---|---|---|---|
| 1 | All of them | 78 |
1.6%
|
| 2 | Only some of them | 708 |
14.1%
|
| 3 | None of them | 4209 |
83.9%
|
| 98 | Don't know | 18 |
0.4%
|
| 99 | Refuse to answer | 5 |
0.1%
|