| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 | 
                                    
                                    1.5%
                                 | |
| 1 | Not at all | 3 | 
                                    
                                    2.3%
                                 | 
| 2 | 5 | 
                                    
                                    3.8%
                                 | |
| 3 | 3 | 
                                    
                                    2.3%
                                 | |
| 4 | 6 | 
                                    
                                    4.5%
                                 | |
| 5 | 27 | 
                                    
                                    20.3%
                                 | |
| 6 | 22 | 
                                    
                                    16.5%
                                 | |
| 7 | 17 | 
                                    
                                    12.8%
                                 | |
| 8 | 20 | 
                                    
                                    15%
                                 | |
| 9 | 14 | 
                                    
                                    10.5%
                                 | |
| 10 | Very much | 9 | 
                                    
                                    6.8%
                                 | 
| 11 | Don't know | 5 | 
                                    
                                    3.8%
                                 | 
| Sysmiss | 1 |