| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    0%
                                 | |
| 1 | 3498 | 
                                    
                                    76.4%
                                 | |
| 2 | 1079 | 
                                    
                                    23.6%
                                 | |
| 5 | 1 | 
                                    
                                    0%
                                 | |
| 7 | 1 | 
                                    
                                    0%
                                 | |
| Sysmiss | 12 |