| Value | Category | Cases | |
|---|---|---|---|
| 0 | No usa | 131 | 
                                                                 
                                    
                                    11.4%
                                 
                                                             | 
                                                        
                    
| 1 | 987 | 
                                                                 
                                    
                                    85.8%
                                 
                                                             | 
                                                        
                    |
| 2 | 28 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    |
| 3 | 2 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 4 | 3 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             |