| Value | Category | Cases | |
|---|---|---|---|
| 0 | 43 | 
                                    
                                    1.6%
                                 | |
| 1 | 2698 | 
                                    
                                    98.3%
                                 | |
| 3 | 4 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 20 |