| Value | Category | Cases | |
|---|---|---|---|
| 0 | 46 | 
                                    
                                    73%
                                 | |
| 1 | 10 | 
                                    
                                    15.9%
                                 | |
| 2 | 3 | 
                                    
                                    4.8%
                                 | |
| 3 | 4 | 
                                    
                                    6.3%
                                 | |
| Sysmiss | 9 |