| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    1.8%
                                 | |
| 1 | 18 | 
                                    
                                    31.6%
                                 | |
| 2 | 15 | 
                                    
                                    26.3%
                                 | |
| 3 | 23 | 
                                    
                                    40.4%
                                 | |
| Sysmiss | 25527 |