| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 1484 | 
                                    
                                    59.6%
                                 | 
| 2 | 30 minutes to 1 hour | 690 | 
                                    
                                    27.7%
                                 | 
| 3 | 1 - 5 Hours | 317 | 
                                    
                                    12.7%
                                 | 
| 4 | More than 5 Hours | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 6983 |