| Value | Category | Cases | |
|---|---|---|---|
| 1 | 452 | 
                                    
                                    77.7%
                                 | |
| 2 | 116 | 
                                    
                                    19.9%
                                 | |
| 3 | 11 | 
                                    
                                    1.9%
                                 | |
| 4 | 3 | 
                                    
                                    0.5%
                                 | |
| Sysmiss | 537 |