| Value | Category |
|---|---|
| 1 | Spouse |
| 2 | Parent |
| 3 | Child |
| 4 | Cousin |
| 5 | Niece or nephew |
| 6 | Aunt or uncle |
| 7 | Grandparent |
| 8 | Other relative |
| 9 | Workmate or a business partner |
| 10 | Neighbor, not a relative |
| 11 | Mobile Operator's agent/employee |
| 12 | Friend |
| 13 | Grandchild |
| 14 | Other |
| Sysmiss |