| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. none of them | 4 |
10.5%
|
| 2 | 2. a few of them | 8 |
21.1%
|
| 3 | 3. some of them | 11 |
28.9%
|
| 4 | 4. most or all of them | 15 |
39.5%
|
| 9 | 9. don't know | 0 |
0%
|
| Sysmiss | 61 |