| Value | Category |
|---|---|
| 1 | is a survey ZD |
| 2 | temporarily absent (a) no polls ZD |
| 3 | refused to(a) lack of intelligence survey ZD |
| 4 | arrived (a)is a survey ZD |
| 5 | arrived (a)and temporarily absent (a) no polls ZD |
| 6 | arrived (a)and refused to (a) lack of intelligence survey ZD |
| 7 | left (a) the lack of household survey ZD |
| Sysmiss |