| Value | Category |
|---|---|
| -9 | Don't know |
| -7 | Legal skip |
| -6 | Unfinished questionnaire |
| -3 | Interviewer error |
| 1 | Spanish |
| 2 | Arabic |
| 3 | Georgian |
| 5 | Turkish |
| 6 | Greek |
| 7 | Azerbaijani |
| 8 | Persian |
| 9 | Ukrainian |
| 10 | Polish |
| 12 | Sign language |
| 15 | Latin |
| 16 | Braille |
| 17 | Italian |
| 19 | Romanian |
| 20 | Assyrian |
| 21 | Latvian |
| 23 | Hebrew |
| 24 | Portugese |