| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 | 
                                    
                                    4.3%
                                 | 
| -7 | Service not offered (spontaneous) | 7 | 
                                    
                                    3%
                                 | 
| 1 | Not at all useful | 44 | 
                                    
                                    18.7%
                                 | 
| 2 | Not very useful | 37 | 
                                    
                                    15.7%
                                 | 
| 3 | Somewhat useful | 116 | 
                                    
                                    49.4%
                                 | 
| 4 | Very useful | 21 | 
                                    
                                    8.9%
                                 | 
| Sysmiss | 720 |