| Value | Category | Cases | |
|---|---|---|---|
| 0 | 648 | 
                                                                 
                                    
                                    60.9%
                                 
                                                             | 
                                                        
                    |
| 1 | 300 | 
                                                                 
                                    
                                    28.2%
                                 
                                                             | 
                                                        
                    |
| 2 | 81 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    |
| 3 | 35 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 212 |