| Value | Category | Cases | |
|---|---|---|---|
| 0 | 427 | 
                                    
                                    63.4%
                                 | |
| 1 | 207 | 
                                    
                                    30.7%
                                 | |
| 2 | 28 | 
                                    
                                    4.2%
                                 | |
| 3 | 5 | 
                                    
                                    0.7%
                                 | |
| 4 | 5 | 
                                    
                                    0.7%
                                 | |
| 6 | 1 | 
                                    
                                    0.1%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 19582 |