| Value | Category | Cases | |
|---|---|---|---|
| 0 | 166 | 
                                    
                                    4.2%
                                 | |
| 1 | 1531 | 
                                    
                                    39%
                                 | |
| 2 | 1362 | 
                                    
                                    34.7%
                                 | |
| 3 | 862 | 
                                    
                                    22%
                                 | |
| Sysmiss | 5 |