| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 3 |
0.6%
|
| -998 | Don't know | 0 |
0%
|
| 0 | No | 46 |
8.6%
|
| 1 | Yes | 484 |
90.8%
|
| Sysmiss | 1648 |