| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not very useful | 1 |
0.5%
|
| 2 | Somewhat useful | 22 |
11.9%
|
| 3 | Useful | 87 |
47%
|
| 4 | Very useful | 75 |
40.5%
|
| Sysmiss | 406 |