| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 | 
                                    
                                    1.5%
                                 | |
| 1 | Not at all | 1 | 
                                    
                                    0.7%
                                 | 
| 2 | 4 | 
                                    
                                    3%
                                 | |
| 3 | 12 | 
                                    
                                    9%
                                 | |
| 4 | 5 | 
                                    
                                    3.7%
                                 | |
| 5 | 26 | 
                                    
                                    19.4%
                                 | |
| 6 | 12 | 
                                    
                                    9%
                                 | |
| 7 | 21 | 
                                    
                                    15.7%
                                 | |
| 8 | 13 | 
                                    
                                    9.7%
                                 | |
| 9 | 17 | 
                                    
                                    12.7%
                                 | |
| 10 | Very much | 19 | 
                                    
                                    14.2%
                                 | 
| 11 | Don't know | 2 | 
                                    
                                    1.5%
                                 |