| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 | 
                                    
                                    34.9%
                                 | |
| 1 | 1 | 
                                    
                                    2.3%
                                 | |
| 2 | 3 | 
                                    
                                    7%
                                 | |
| 3 | 4 | 
                                    
                                    9.3%
                                 | |
| 4 | 3 | 
                                    
                                    7%
                                 | |
| 5 | 6 | 
                                    
                                    14%
                                 | |
| 6 | 8 | 
                                    
                                    18.6%
                                 | |
| 7 | 3 | 
                                    
                                    7%
                                 | |
| Sysmiss | 38 |