| Gross approach |
4902 |
100 |
| Quality neutral failures |
72 |
1.5 |
| Residence not inhabited |
54 |
1.1 |
| No person of the basic population in household |
18 |
0.4 |
| Address not used |
0 |
0 |
| Net sample (address used) |
4830 |
100 |
| Systematic failures |
2286 |
47.3 |
| Of which: |
| Household not encountered in four visits |
693 |
14.3 |
| Household refuses to give information |
721 |
14.9 |
| Target person not encountered in four visits |
104 |
2.2 |
| Target person away, holidays |
23 |
0.5 |
| Target person ill, not able to follow the interview |
14 |
0.3 |
| Target person refuses interview |
731 |
15.1 |
| Interviews conducted |
2544 |
52.7 |
| Non-evaluable interviews |
20 |
0.4 |
| Evaluated interviews/response rate |
2524 |
52.3 |
