| Value | Category | Cases | |
|---|---|---|---|
| 0 | 317 | 
                                    
                                    24.1%
                                 | |
| 1 | 202 | 
                                    
                                    15.3%
                                 | |
| 2 | 282 | 
                                    
                                    21.4%
                                 | |
| 3 | 222 | 
                                    
                                    16.9%
                                 | |
| 4 | 110 | 
                                    
                                    8.4%
                                 | |
| 5 | 87 | 
                                    
                                    6.6%
                                 | |
| 6 | 16 | 
                                    
                                    1.2%
                                 | |
| 7 | 81 | 
                                    
                                    6.2%
                                 | |
| Sysmiss | 1 |