| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 1 |
0.1%
|
| -8 | I don't know | 0 |
0%
|
| 0 | No | 138 |
19.7%
|
| 1 | Yes | 562 |
80.2%
|
| Sysmiss | 2103 |