| Value | Category | Cases | |
|---|---|---|---|
| 0 | 28 | 
                                    
                                    0.9%
                                 | |
| 1 | 150 | 
                                    
                                    4.6%
                                 | |
| 2 | 917 | 
                                    
                                    28.4%
                                 | |
| 3 | 1368 | 
                                    
                                    42.3%
                                 | |
| 4 | 656 | 
                                    
                                    20.3%
                                 | |
| 5 | 114 | 
                                    
                                    3.5%
                                 | |
| Sysmiss | 408 |