| Value | Category | Cases | |
|---|---|---|---|
| 1 | Refusal | 13 |
9.4%
|
| 2 | Non-contact | 109 |
78.4%
|
| 3 | Dwelling cannot be found | 9 |
6.5%
|
| 4 | Others | 8 |
5.8%
|
| Sysmiss | 6245 |