| Value | Category | Cases | |
|---|---|---|---|
| 1 | Useless | 43 |
3.4%
|
| 2 | Not very useful | 72 |
5.8%
|
| 3 | Average | 81 |
6.5%
|
| 4 | Useful | 1052 |
84.3%
|
| Sysmiss | 10032 |