| Value | Category | Cases | |
|---|---|---|---|
| 0 | 630 | 
                                    
                                    47%
                                 | |
| 1 | 434 | 
                                    
                                    32.4%
                                 | |
| 2 | 191 | 
                                    
                                    14.3%
                                 | |
| 3 | 57 | 
                                    
                                    4.3%
                                 | |
| 4 | 19 | 
                                    
                                    1.4%
                                 | |
| 5 | 8 | 
                                    
                                    0.6%
                                 | |
| 6 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 160 |