| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refused (SPONTANEOUS) | 0 |
0%
|
| -9 | Don’t know (SPONTANEOUS) | 1 |
0.2%
|
| 1 | yes | 55 |
12.3%
|
| 2 | no | 391 |
87.5%
|
| Sysmiss | 224 |