| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6127 | 
                                    
                                    72.6%
                                 | |
| 2 | 1497 | 
                                    
                                    17.7%
                                 | |
| 3 | 288 | 
                                    
                                    3.4%
                                 | |
| 4 | 526 | 
                                    
                                    6.2%
                                 | |
| Sysmiss | 2 |