| Value | Category | Cases | |
|---|---|---|---|
| 0 | 230 | 
                                    
                                    8.2%
                                 | |
| 1 | 339 | 
                                    
                                    12.1%
                                 | |
| 2 | 579 | 
                                    
                                    20.7%
                                 | |
| 3 | 1651 | 
                                    
                                    59%
                                 | |
| Sysmiss | 1200 |