| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 0 |
0%
|
| -8 | Do not know | 303 |
17.6%
|
| 0 | No | 1332 |
77.2%
|
| 1 | Yes | 91 |
5.3%
|
| Sysmiss | 9332 |