| Value | Category | Cases | |
|---|---|---|---|
| 1 | Most of them | 94 |
6.3%
|
| 2 | About half of them | 55 |
3.7%
|
| 3 | Some of them | 159 |
10.7%
|
| 4 | None of them | 274 |
18.4%
|
| 5 | I don't know | 909 |
61%
|
| Sysmiss | 28 |