| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused to answer |
| -7 | Not applicable |
| -6 | Still in process |
| -5 | Application denied |
| -4 | Skipped |
| -3 | Not provided |
| 1511 | |
| 1512 | |
| 1520 | |
| 1531 | |
| 1541 | |
| 1543 | |
| 1544 | |
| 1722 | |
| 1810 | |
| 1912 | |
| 1920 | |
| 2109 | |
| 2222 | |
| 2411 | |
| 2412 | |
| 2422 | |
| 2424 | |
| 2520 | |
| 2610 | |
| 2695 | |
| 2811 | |
| 2899 | |
| 2925 | |
| 3610 | |
| 3691 | |
| 3699 | |
| 5030 | |
| 5139 | |
| 5143 | |
| 5211 | |
| 5220 | |
| 5231 | |
| 5232 | |
| 5233 | |
| 5234 | |
| 5239 | |
| 5250 | |
| 5520 | |
| 7129 | |
| 7290 | |
| 7499 | |
| Sysmiss |