| Value | Category | Cases | |
|---|---|---|---|
| -2 | Refusal to answer | 0 |
0%
|
| -1 | Don't know | 1 |
5%
|
| 0 | 17 |
85%
|
|
| 1 | 1 |
5%
|
|
| 6 | 1 |
5%
|
|
| Sysmiss | 2613 |