| Value | Category | Cases | |
|---|---|---|---|
| 0 | 542 | 
                                                                 
                                    
                                    85%
                                 
                                                             | 
                                                        
                    |
| 1 | 72 | 
                                                                 
                                    
                                    11.3%
                                 
                                                             | 
                                                        
                    |
| 2 | 19 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    |
| 3 | 5 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 2 |