| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 0 |
0%
|
| 1 | nothing | 98 |
38.7%
|
| 2 | a little bit | 36 |
14.2%
|
| 3 | quite a lot | 25 |
9.9%
|
| 4 | full knowledge | 89 |
35.2%
|
| 98 | don't know | 0 |
0%
|
| 9999995 | missing:impute | 5 |
2%
|
