| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1063 | 
                                                                 
                                    
                                    18.2%
                                 
                                                             | 
                                                        
                    
| 0 | 101 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 82 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 2 | 352 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 3 | 320 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    |
| 4 | 531 | 
                                                                 
                                    
                                    9.1%
                                 
                                                             | 
                                                        
                    |
| 5 | 488 | 
                                                                 
                                    
                                    8.4%
                                 
                                                             | 
                                                        
                    |
| 6 | 312 | 
                                                                 
                                    
                                    5.3%
                                 
                                                             | 
                                                        
                    |
| 7 | 294 | 
                                                                 
                                    
                                    5%
                                 
                                                             | 
                                                        
                    |
| 8 | 687 | 
                                                                 
                                    
                                    11.8%
                                 
                                                             | 
                                                        
                    |
| 9 | 131 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 10 | 582 | 
                                                                 
                                    
                                    10%
                                 
                                                             | 
                                                        
                    |
| 11 | 16 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 12 | 602 | 
                                                                 
                                    
                                    10.3%
                                 
                                                             | 
                                                        
                    |
| 13 | 30 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 14 | 50 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 15 | 107 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    |
| 16 | 11 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 17 | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| 18 | 4 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 19 | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| 24 | 78 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 4829 |