| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 38 | 
                                                                 
                                    
                                    22.1%
                                 
                                                             | 
                                                        
                    
| -6 | Still in progress | 19 | 
                                                                 
                                    
                                    11%
                                 
                                                             | 
                                                        
                    
| 1 | One week or less | 39 | 
                                                                 
                                    
                                    22.7%
                                 
                                                             | 
                                                        
                    
| 2 | 17 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    |
| 3 | 12 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    |
| 4 | 28 | 
                                                                 
                                    
                                    16.3%
                                 
                                                             | 
                                                        
                    |
| 7 | 8 | 
                                                                 
                                    
                                    4.7%
                                 
                                                             | 
                                                        
                    |
| 8 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 12 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 14 | 2 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| 15 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 30 | 6 | 
                                                                 
                                    
                                    3.5%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 2783 |