| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
2.8%
|
| -7 | Service not offered (spontaneous) | 5 |
2.3%
|
| 1 | Not at all useful | 28 |
12.9%
|
| 2 | Not very useful | 33 |
15.2%
|
| 3 | Somewhat useful | 108 |
49.8%
|
| 4 | Very useful | 37 |
17.1%
|
| Sysmiss | 1152 |