| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 16 | 
                                                                 
                                    
                                    3.8%
                                 
                                                             | 
                                                        
                    
| 2 | Between 2 and 4 weeks | 14 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    
| 3 | Between 1 and 2 months | 53 | 
                                                                 
                                    
                                    12.4%
                                 
                                                             | 
                                                        
                    
| 4 | Between 2 and 6 months | 66 | 
                                                                 
                                    
                                    15.5%
                                 
                                                             | 
                                                        
                    
| 5 | More than 6 months | 68 | 
                                                                 
                                    
                                    16%
                                 
                                                             | 
                                                        
                    
| 6 | Never | 36 | 
                                                                 
                                    
                                    8.5%
                                 
                                                             | 
                                                        
                    
| 7 | Don’t know (uncertain) | 173 | 
                                                                 
                                    
                                    40.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 5054 |