| Value | Category | Cases | |
|---|---|---|---|
| 0 | 917 | 
                                    
                                    49.6%
                                 | |
| 1 | 168 | 
                                    
                                    9.1%
                                 | |
| 2 | 420 | 
                                    
                                    22.7%
                                 | |
| 3 | 342 | 
                                    
                                    18.5%
                                 | |
| Sysmiss | 7628 |