| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1867 |
25%
|
|
| 1 | Refused | 675 |
9%
|
| 2 | Not available | 1493 |
20%
|
| 3 | Others | 3444 |
46%
|
| Sysmiss | 39710 |