| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 1555 | 
                                    
                                    62.4%
                                 | 
| 2 | 30 minutes to 1 hour | 680 | 
                                    
                                    27.3%
                                 | 
| 3 | 1 - 5 Hours | 257 | 
                                    
                                    10.3%
                                 | 
| 4 | More than 5 Hours | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 6983 |