| Value | Category | Cases | |
|---|---|---|---|
| 1 | (1) Not useful at all | 29528 |
6%
|
| 2 | (2) | 50657 |
10.3%
|
| 3 | (3) | 89128 |
18.2%
|
| 4 | (4) | 103001 |
21%
|
| 5 | (5) | 100047 |
20.4%
|
| 6 | (6) Very Useful | 118026 |
24.1%
|
| 7 | N/A | 4031 | |
| 8 | Invalid | 1416 | |
| 9 | Miss | 20124 |