| Value | Category | Cases | |
|---|---|---|---|
| 0 | 355 | 
                                    
                                    27%
                                 | |
| 1 | 141 | 
                                    
                                    10.7%
                                 | |
| 2 | 204 | 
                                    
                                    15.5%
                                 | |
| 3 | 193 | 
                                    
                                    14.7%
                                 | |
| 4 | 81 | 
                                    
                                    6.2%
                                 | |
| 5 | 46 | 
                                    
                                    3.5%
                                 | |
| 6 | 11 | 
                                    
                                    0.8%
                                 | |
| 7 | 285 | 
                                    
                                    21.7%
                                 | |
| Sysmiss | 2 |