| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refused (SPONTANEOUS) | 0 |
0%
|
| -9 | Don’t know (SPONTANEOUS) | 2 |
0.4%
|
| 1 | yes | 117 |
26.1%
|
| 2 | no | 329 |
73.4%
|
| Sysmiss | 223 |