| Value | Category | Cases | |
|---|---|---|---|
| 0 | 33 | 
                                    
                                    34%
                                 | |
| 1 | 18 | 
                                    
                                    18.6%
                                 | |
| 2 | 18 | 
                                    
                                    18.6%
                                 | |
| 3 | 10 | 
                                    
                                    10.3%
                                 | |
| 4 | 2 | 
                                    
                                    2.1%
                                 | |
| 5 | 4 | 
                                    
                                    4.1%
                                 | |
| 6 | 2 | 
                                    
                                    2.1%
                                 | |
| 7 | 1 | 
                                    
                                    1%
                                 | |
| 10 | 7 | 
                                    
                                    7.2%
                                 | |
| 15 | 2 | 
                                    
                                    2.1%
                                 | |
| Sysmiss | 326 |