| Value | Category |
|---|---|
| -99 | Refused |
| -98 | Not applicable |
| -97 | Don't know |
| -90 | Filtered |
| -1 | Not stated |
| 1 | Immigrants make a valuable contribution to the national economy of our country |
| 2 | Immigrants are a burden for the national social protection system |
| 3 | None of the above |
| Sysmiss |