| Value | Category | Cases | |
|---|---|---|---|
| 0 | 130 | 
                                    
                                    3%
                                 | |
| 1 | 3712 | 
                                    
                                    85.1%
                                 | |
| 2 | 394 | 
                                    
                                    9%
                                 | |
| 3 | 110 | 
                                    
                                    2.5%
                                 | |
| 4 | 15 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 7875 |