| Value | Category | Cases | |
|---|---|---|---|
| 0 | 213 | 
                                                                 
                                    
                                    32%
                                 
                                                             | 
                                                        
                    |
| 1 | 249 | 
                                                                 
                                    
                                    37.4%
                                 
                                                             | 
                                                        
                    |
| 2 | 173 | 
                                                                 
                                    
                                    26%
                                 
                                                             | 
                                                        
                    |
| 3 | 29 | 
                                                                 
                                    
                                    4.4%
                                 
                                                             | 
                                                        
                    |
| 4 | 1 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 496 |