| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
1.1%
|
| -7 | Service not offered (spontaneous) | 1 |
0.2%
|
| 1 | Not at all useful | 32 |
7%
|
| 2 | Not very useful | 59 |
13%
|
| 3 | Somewhat useful | 210 |
46.3%
|
| 4 | Very useful | 147 |
32.4%
|
| Sysmiss | 147 |