| Value | Category | Cases | |
|---|---|---|---|
| 1 | Allow | 1031 |
42.7%
|
| 2 | Uncertain | 324 |
13.4%
|
| 3 | Not allow | 975 |
40.4%
|
| 4 | Refuse to answer | 86 |
3.6%
|
| Sysmiss | 3 |