| Value | Category | Cases | |
|---|---|---|---|
| 1 | Useless | 39 |
3.6%
|
| 2 | Not very useful | 62 |
5.7%
|
| 3 | Average | 56 |
5.1%
|
| 4 | Useful | 931 |
85.6%
|
| Sysmiss | 10192 |