| Value | Category | Cases | |
|---|---|---|---|
| 1 | 469 | 
                                    
                                    89.7%
                                 | |
| 2 | 51 | 
                                    
                                    9.8%
                                 | |
| 3 | 2 | 
                                    
                                    0.4%
                                 | |
| 4 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 273 |