| Value | Category |
|---|---|
| 0 | DK/Refused |
| 1 | Increase the incentive |
| 2 | Give some kind of help |
| 3 | Training to understand the survey better |
| 4 | More information |
| 5 | Change schedules |
| 6 | Nothing, everything is fine |
| 7 | Easier questions |
| 8 | More frequent personal visits |
| 9 | Surveys with option to calls or messages |
| 10 | Pay attention to people |
| 11 | Not to repeat questions |
| Sysmiss |