| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 16 |
1.1%
|
| 2 | dont_know | 3 |
0.2%
|
| 3 | useful | 717 |
49.2%
|
| 4 | very_useful | 653 |
44.8%
|
| Missing value | 68 |
4.7%
|