| Value | Category | Cases | |
|---|---|---|---|
| 1 | informant : busy | 127 |
6.1%
|
| 2 | not available | 1506 |
72.9%
|
| 3 | non - cooperative | 291 |
14.1%
|
| 9 | others | 142 |
6.9%
|
| Sysmiss | 359710 |