| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 | 
                                    
                                    8.2%
                                 | |
| 1 | 24 | 
                                    
                                    49%
                                 | |
| 2 | 6 | 
                                    
                                    12.2%
                                 | |
| 3 | 5 | 
                                    
                                    10.2%
                                 | |
| 4 | 10 | 
                                    
                                    20.4%
                                 | |
| Sysmiss | 262 |