| Value | Category | Cases | |
|---|---|---|---|
| 1 | Allow | 860 |
35.6%
|
| 2 | Uncertain | 230 |
9.5%
|
| 3 | Not allow | 1240 |
51.4%
|
| 4 | Refuse to answer | 84 |
3.5%
|
| Sysmiss | 5 |