| Value | Category | Cases | |
|---|---|---|---|
| 0 | 5 | 
                                    
                                    5.6%
                                 | |
| 2 | 43 | 
                                    
                                    48.3%
                                 | |
| 3 | 19 | 
                                    
                                    21.3%
                                 | |
| 4 | 22 | 
                                    
                                    24.7%
                                 | |
| Sysmiss | 42 |