| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1505 | 
                                    
                                    77.4%
                                 | |
| 1 | 63 | 
                                    
                                    3.2%
                                 | |
| 2 | 83 | 
                                    
                                    4.3%
                                 | |
| 3 | 185 | 
                                    
                                    9.5%
                                 | |
| 4 | 108 | 
                                    
                                    5.6%
                                 | |
| Sysmiss | 23 |