| Value | Category | Cases | |
|---|---|---|---|
| 0 | 116 | 
                                    
                                    29.1%
                                 | |
| 1 | 51 | 
                                    
                                    12.8%
                                 | |
| 2 | 183 | 
                                    
                                    46%
                                 | |
| 3 | 9 | 
                                    
                                    2.3%
                                 | |
| 4 | 32 | 
                                    
                                    8%
                                 | |
| 5 | 2 | 
                                    
                                    0.5%
                                 | |
| 6 | 3 | 
                                    
                                    0.8%
                                 | |
| 8 | 2 | 
                                    
                                    0.5%
                                 | |
| Sysmiss | 2 |