| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 | 
                                    
                                    2.3%
                                 | |
| 1 | Not at all | 2 | 
                                    
                                    1.5%
                                 | 
| 2 | 1 | 
                                    
                                    0.8%
                                 | |
| 3 | 6 | 
                                    
                                    4.5%
                                 | |
| 4 | 7 | 
                                    
                                    5.3%
                                 | |
| 5 | 14 | 
                                    
                                    10.6%
                                 | |
| 6 | 13 | 
                                    
                                    9.8%
                                 | |
| 7 | 23 | 
                                    
                                    17.4%
                                 | |
| 8 | 26 | 
                                    
                                    19.7%
                                 | |
| 9 | 18 | 
                                    
                                    13.6%
                                 | |
| 10 | Very much | 11 | 
                                    
                                    8.3%
                                 | 
| 11 | Don't know | 8 | 
                                    
                                    6.1%
                                 | 
| Sysmiss | 2 |