| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 | 
                                                                 
                                    
                                    14.3%
                                 
                                                             | 
                                                        
                    
| 60 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 160 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 200 | 2 | 
                                                                 
                                    
                                    14.3%
                                 
                                                             | 
                                                        
                    |
| 220 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 442 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 620 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 665 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 860 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 900 | 2 | 
                                                                 
                                    
                                    14.3%
                                 
                                                             | 
                                                        
                    |
| 1200 | 1 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 361 |