| Contact situation | Times | Rate | |
| Useful interview (I) | Useful interview | 300 | 30.491% |
| Refused interview (R) | Refused by receivers | 560 | 56.91% |
| Refused by eligible respondents | 24 | 2.44% | |
| Halfway refused by eligible respondents | 79 | 8.03% | |
| Others (O) | Language barriers | 21 | 2.13% |
|
| Useful contact times | 984 | 100.00% |
| No contact | Unavailable/on the phone/not in right now | 34 | - |
| Not eligible |
| 49 | - |
| Non-human factors | Nobody answered | 740 | - |
| The line is busy | 79 | - | |
| Telephone failure/stop | 29 | - | |
| Sample phone error/empty number/missing number/fax | 687 | - | |
|
| Phone call amounts | 2,602 | - |