| Value | Category | Cases | |
|---|---|---|---|
| -2 | inapplicable | 0 | 
                                    
                                    0%
                                 | 
| -1 | no answer | 1 | 
                                    
                                    0.1%
                                 | 
| 0 | Nicht wirkungsvoll | 228 | 
                                    
                                    16.8%
                                 | 
| 1 | 155 | 
                                    
                                    11.4%
                                 | |
| 2 | 190 | 
                                    
                                    14%
                                 | |
| 3 | 178 | 
                                    
                                    13.1%
                                 | |
| 4 | 120 | 
                                    
                                    8.8%
                                 | |
| 5 | 169 | 
                                    
                                    12.4%
                                 | |
| 6 | 128 | 
                                    
                                    9.4%
                                 | |
| 7 | 88 | 
                                    
                                    6.5%
                                 | |
| 8 | 52 | 
                                    
                                    3.8%
                                 | |
| 9 | 17 | 
                                    
                                    1.3%
                                 | |
| 10 | Sehr wirkungsvoll | 34 | 
                                    
                                    2.5%
                                 |