| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 15 |
1%
|
| 2 | dont_know | 1 |
0.1%
|
| 3 | useful | 749 |
51.4%
|
| 4 | very_useful | 624 |
42.8%
|
| Missing value | 68 |
4.7%
|