| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 minutes | 29 | 
                                                                 
                                    
                                    64.4%
                                 
                                                             | 
                                                        
                    
| 2 | 3-5 minutes | 8 | 
                                                                 
                                    
                                    17.8%
                                 
                                                             | 
                                                        
                    
| 3 | 6-10 minutes | 4 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    
| 4 | 11-20 minutes | 2 | 
                                                                 
                                    
                                    4.4%
                                 
                                                             | 
                                                        
                    
| 5 | More than 21 minutes | 2 | 
                                                                 
                                    
                                    4.4%
                                 
                                                             | 
                                                        
                    
| 6 | Not sure | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 11 | .B | 10 | |
| Sysmiss | 44 |