| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes-Spenteneously | 503 | 
                            
                             
                                
                                25.5%
                                                             
                            
                         | 
                        
                    
| 2 | Yes-Probed | 825 | 
                            
                             
                                
                                41.8%
                                                             
                            
                         | 
                        
                    
| 3 | No | 639 | 
                            
                             
                                
                                32.4%
                                                             
                            
                         | 
                        
                    
| 9 | N/A | 6 | 
                            
                             
                                
                                0.3%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 24 |