| Value | Category | Cases | |
|---|---|---|---|
| 0 | 254 | 
                                    
                                    80.4%
                                 | |
| 1 | 4 | 
                                    
                                    1.3%
                                 | |
| 2 | 2 | 
                                    
                                    0.6%
                                 | |
| 3 | 6 | 
                                    
                                    1.9%
                                 | |
| 4 | 8 | 
                                    
                                    2.5%
                                 | |
| 5 | 3 | 
                                    
                                    0.9%
                                 | |
| 6 | 18 | 
                                    
                                    5.7%
                                 | |
| 7 | 3 | 
                                    
                                    0.9%
                                 | |
| 8 | 8 | 
                                    
                                    2.5%
                                 | |
| 9 | 3 | 
                                    
                                    0.9%
                                 | |
| 10 | 5 | 
                                    
                                    1.6%
                                 | |
| 11 | 2 | 
                                    
                                    0.6%
                                 | |
| Sysmiss | 480 |