| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 17 |
1.2%
|
| 2 | dont_know | 1 |
0.1%
|
| 3 | useful | 829 |
56.7%
|
| 4 | very_useful | 369 |
25.2%
|
| Missing value | 246 |
16.8%
|