| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 5 minutes | 3529 | 
                                                                 
                                    
                                    23.9%
                                 
                                                             | 
                                                        
                    
| 2 | 5 - 15 minutes | 5369 | 
                                                                 
                                    
                                    36.3%
                                 
                                                             | 
                                                        
                    
| 3 | 15 - 30 minutes | 3149 | 
                                                                 
                                    
                                    21.3%
                                 
                                                             | 
                                                        
                    
| 4 | Over 30 minutes | 2303 | 
                                                                 
                                    
                                    15.6%
                                 
                                                             | 
                                                        
                    
| 5 | Don't know | 433 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2201 |