| Value | Category | Cases | |
|---|---|---|---|
| 1 | (1) Not useful at all | 100706 |
20.4%
|
| 2 | (2) | 84859 |
17.2%
|
| 3 | (3) | 90413 |
18.3%
|
| 4 | (4) | 79506 |
16.1%
|
| 5 | (5) | 64560 |
13.1%
|
| 6 | (6) Very Useful | 74314 |
15%
|
| 7 | N/A | 4039 | |
| 8 | Invalid | 896 | |
| 9 | Miss | 16665 |