| Value | Category | Cases | |
|---|---|---|---|
| 1 | Useless | 135 |
19.5%
|
| 2 | Not very useful | 74 |
10.7%
|
| 3 | Average | 73 |
10.6%
|
| 4 | Useful | 409 |
59.2%
|
| Sysmiss | 10589 |