| Value | Category | Cases | |
|---|---|---|---|
| 0 | 374 | 
                                    
                                    37.7%
                                 | |
| 1 | 268 | 
                                    
                                    27%
                                 | |
| 2 | 157 | 
                                    
                                    15.8%
                                 | |
| 3 | 97 | 
                                    
                                    9.8%
                                 | |
| 4 | 47 | 
                                    
                                    4.7%
                                 | |
| 5 | 27 | 
                                    
                                    2.7%
                                 | |
| 6 | 12 | 
                                    
                                    1.2%
                                 | |
| 7 | 7 | 
                                    
                                    0.7%
                                 | |
| 8 | 4 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 6 |