| Value | Category | Cases | |
|---|---|---|---|
| 1 | (1) Not useful at all | 24498 |
5%
|
| 2 | (2) | 30422 |
6.2%
|
| 3 | (3) | 54767 |
11.1%
|
| 4 | (4) | 72706 |
14.8%
|
| 5 | (5) | 103038 |
20.9%
|
| 6 | (6) Very Useful | 207129 |
42.1%
|
| 7 | N/A | 4030 | |
| 8 | Invalid | 897 | |
| 9 | Miss | 18471 |