| Value | Category | Cases | |
|---|---|---|---|
| 0 | 725 | 
                                    
                                    11.1%
                                 | |
| 1 | 216 | 
                                    
                                    3.3%
                                 | |
| 2 | 125 | 
                                    
                                    1.9%
                                 | |
| 3 | 56 | 
                                    
                                    0.9%
                                 | |
| 4 | 14 | 
                                    
                                    0.2%
                                 | |
| 5 | 3 | 
                                    
                                    0%
                                 | |
| 7 | 1 | 
                                    
                                    0%
                                 | |
| 8 | 1 | 
                                    
                                    0%
                                 | |
| 10 | 2 | 
                                    
                                    0%
                                 | |
| Missing value | 5418 | 
                                    
                                    82.6%
                                 |