| Value | Category | Cases | |
|---|---|---|---|
| -99 | 1 | 
                                    
                                    0.8%
                                 | |
| 1 | Not at all | 3 | 
                                    
                                    2.3%
                                 | 
| 2 | 1 | 
                                    
                                    0.8%
                                 | |
| 3 | 5 | 
                                    
                                    3.8%
                                 | |
| 4 | 11 | 
                                    
                                    8.3%
                                 | |
| 5 | 14 | 
                                    
                                    10.5%
                                 | |
| 6 | 14 | 
                                    
                                    10.5%
                                 | |
| 7 | 14 | 
                                    
                                    10.5%
                                 | |
| 8 | 24 | 
                                    
                                    18%
                                 | |
| 9 | 28 | 
                                    
                                    21.1%
                                 | |
| 10 | Very much | 16 | 
                                    
                                    12%
                                 | 
| 11 | Don't know | 2 | 
                                    
                                    1.5%
                                 | 
| Sysmiss | 1 |