| Value | Category | Cases | |
|---|---|---|---|
| 0 | 41 | 
                                    
                                    2.3%
                                 | |
| 1 | 14 | 
                                    
                                    0.8%
                                 | |
| 2 | 52 | 
                                    
                                    2.9%
                                 | |
| 3 | 1714 | 
                                    
                                    94.1%
                                 | |
| Sysmiss | 1 |