| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 16 |
1.1%
|
| 2 | dont_know | 1 |
0.1%
|
| 3 | useful | 833 |
57%
|
| 4 | very_useful | 382 |
26.1%
|
| Missing value | 230 |
15.7%
|