| Value | Category | Cases | |
|---|---|---|---|
| 0 | 21 | 
                                    
                                    42.9%
                                 | |
| 1 | 2 | 
                                    
                                    4.1%
                                 | |
| 2 | 1 | 
                                    
                                    2%
                                 | |
| 3 | 6 | 
                                    
                                    12.2%
                                 | |
| 4 | 4 | 
                                    
                                    8.2%
                                 | |
| 5 | 2 | 
                                    
                                    4.1%
                                 | |
| 6 | 1 | 
                                    
                                    2%
                                 | |
| 7 | 12 | 
                                    
                                    24.5%
                                 | |
| Sysmiss | 944 |