| Value | Category |
|---|---|
| 0 | DK/Refused |
| 1 | Keep promise of pre-paid recharge |
| 2 | Help community/people |
| 3 | Questions/interesting topics |
| 4 | Way to administer the survey |
| 5 | Nothing, it's fine like this |
| 6 | Scope of results |
| 7 | More motivation to participate/incentive |
| 8 | Improve questions: shorter, easier, not repeated |
| Sysmiss |