| Value | Category | Cases | |
|---|---|---|---|
| 0 | 274 | 
                                    
                                    17.3%
                                 | |
| 1 | 1018 | 
                                    
                                    64.2%
                                 | |
| 2 | 181 | 
                                    
                                    11.4%
                                 | |
| 3 | 70 | 
                                    
                                    4.4%
                                 | |
| 4 | 24 | 
                                    
                                    1.5%
                                 | |
| 5 | 17 | 
                                    
                                    1.1%
                                 | |
| 6 | 1 | 
                                    
                                    0.1%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 6464 |