| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 31 |
2.1%
|
| 2 | dont_know | 1 |
0.1%
|
| 3 | useful | 347 |
23.7%
|
| 4 | very_useful | 202 |
13.8%
|
| Missing value | 881 |
60.3%
|