| Value | Category | Cases | |
|---|---|---|---|
| 1 | Most of them | 1419 |
13%
|
| 2 | About half of them | 1770 |
16.2%
|
| 3 | Some of them | 3616 |
33%
|
| 4 | None of them | 589 |
5.4%
|
| 5 | I don't know | 3548 |
32.4%
|
| Sysmiss | 171 |