| Value | Category | Cases | |
|---|---|---|---|
| 10min | 10 | 
                                                                 
                                    
                                    27.8%
                                 
                                                             | 
                                                        
                    |
| 15min | 8 | 
                                                                 
                                    
                                    22.2%
                                 
                                                             | 
                                                        
                    |
| 20min | 12 | 
                                                                 
                                    
                                    33.3%
                                 
                                                             | 
                                                        
                    |
| 25min | 3 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                                                        
                    |
| 35min | 2 | 
                                                                 
                                    
                                    5.6%
                                 
                                                             | 
                                                        
                    |
| Same contact as before | 1 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             |