| Value | Category | Cases | |
|---|---|---|---|
| 1 | 29 | 
                                    
                                    30.9%
                                 | |
| 2 | 31 | 
                                    
                                    33%
                                 | |
| 3 | 33 | 
                                    
                                    35.1%
                                 | |
| 4 | 1 | 
                                    
                                    1.1%
                                 | |
| Sysmiss | 47 |