| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    0%
                                 | |
| 1 | 2529 | 
                                    
                                    90.5%
                                 | |
| 2 | 225 | 
                                    
                                    8.1%
                                 | |
| 3 | 25 | 
                                    
                                    0.9%
                                 | |
| 4 | 9 | 
                                    
                                    0.3%
                                 | |
| 5 | 4 | 
                                    
                                    0.1%
                                 | |
| 7 | 1 | 
                                    
                                    0%
                                 | |
| Sysmiss | 384 |