| Value | Category | Cases | |
|---|---|---|---|
| 1 | Allow | 756 |
31.4%
|
| 2 | Uncertain | 265 |
11%
|
| 3 | Not allow | 1305 |
54.1%
|
| 4 | Refuse to answer | 84 |
3.5%
|
| Sysmiss | 9 |