| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 | 
                                    
                                    1.5%
                                 | |
| 1 | 107 | 
                                    
                                    22.2%
                                 | |
| 2 | 132 | 
                                    
                                    27.4%
                                 | |
| 3 | 163 | 
                                    
                                    33.9%
                                 | |
| 4 | 56 | 
                                    
                                    11.6%
                                 | |
| 5 | 16 | 
                                    
                                    3.3%
                                 | |
| Sysmiss | 215 |