| Value | Category | Cases | |
|---|---|---|---|
| 0 | 99 | 
                                    
                                    11.5%
                                 | |
| 1 | 671 | 
                                    
                                    77.8%
                                 | |
| 2 | 45 | 
                                    
                                    5.2%
                                 | |
| 5 | 5 | 
                                    
                                    0.6%
                                 | |
| 6 | 3 | 
                                    
                                    0.3%
                                 | |
| 7 | 39 | 
                                    
                                    4.5%
                                 | |
| Missing value | 2481 |