| Value | Category | Cases | |
|---|---|---|---|
| 0 | 526 | 
                                    
                                    77.5%
                                 | |
| 1 | 58 | 
                                    
                                    8.5%
                                 | |
| 2 | 47 | 
                                    
                                    6.9%
                                 | |
| 3 | 22 | 
                                    
                                    3.2%
                                 | |
| 4 | 16 | 
                                    
                                    2.4%
                                 | |
| 5 | 1 | 
                                    
                                    0.1%
                                 | |
| 6 | 7 | 
                                    
                                    1%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| 8 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 2555 |