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