| Value | Category |
|---|---|
| -99 | Refuse to answer |
| -98 | Difficult to answer/Don't remember |
| -97 | Don't know/No information |
| -9 | Interrupted interview |
| -7 | Legal Skip |
| -3 | Interviewer error |
| 1 | Armenian |
| 2 | Russian |
| 3 | Kurdish |
| 4 | Yezidi |
| 5 | Assyrian |
| 6 | Greek |
| 7 | Ukrainian |
| 8 | Jewish |
| 9 | Persian |
| 10 | Arab |
| 11 | Indian |
| 12 | Other |