| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.2%
|
| -7 | Service not offered (spontaneous) | 14 |
2.6%
|
| 1 | Not at all useful | 37 |
6.8%
|
| 2 | Not very useful | 78 |
14.3%
|
| 3 | Somewhat useful | 295 |
54.1%
|
| 4 | Very useful | 120 |
22%
|
| Sysmiss | 1524 |