| Value | Category |
|---|---|
| 1 | Yes, migrated and hasnt returned |
| 2 | Yes, migrated and returned after absence less than 3 months |
| 3 | Yes, migrated and returned after 3-12 months absence |
| 4 | Yes, migrated and returned after absence 12 and more months |
| 5 | No |
| 6 | First time come to that region |
| 7 | |
| Sysmiss |