| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 3 |
2.1%
|
| -998 | Don't know | 1 |
0.7%
|
| 0 | No | 2 |
1.4%
|
| 1 | Yes | 140 |
95.9%
|
| Sysmiss | 2035 |