| Value | Category | Cases | |
|---|---|---|---|
| 1 | 239 | 
                                    
                                    7.4%
                                 | |
| 2 | 40 | 
                                    
                                    1.2%
                                 | |
| 3 | 134 | 
                                    
                                    4.2%
                                 | |
| 4 | 2802 | 
                                    
                                    87.2%
                                 | |
| Sysmiss | 1 |