| Value | Category | Cases | |
|---|---|---|---|
| 0 | 44 | 
                                                                 
                                    
                                    20%
                                 
                                                             | 
                                                        
                    |
| 1 | 169 | 
                                                                 
                                    
                                    76.8%
                                 
                                                             | 
                                                        
                    |
| 2 | 5 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 3 | 2 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 90 |