| Value | Category | Cases | |
|---|---|---|---|
| 1 | (1) Not useful at all | 46264 |
9.4%
|
| 2 | (2) | 60897 |
12.4%
|
| 3 | (3) | 106189 |
21.5%
|
| 4 | (4) | 102015 |
20.7%
|
| 5 | (5) | 79843 |
16.2%
|
| 6 | (6) Very Useful | 97782 |
19.8%
|
| 7 | N/A | 4035 | |
| 8 | Invalid | 923 | |
| 9 | Miss | 18010 |