| Value | Category | Cases | |
|---|---|---|---|
| 1 | Useless | 16 |
2.2%
|
| 2 | Not very useful | 58 |
8%
|
| 3 | Useful | 300 |
41.4%
|
| 4 | Very useful | 351 |
48.4%
|
| Sysmiss | 36547 |