| Value | Category | Cases | |
|---|---|---|---|
| -66 | Refused to answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Yes, more than 3 months | 109 | 
                                                                 
                                    
                                    38.7%
                                 
                                                             | 
                                                        
                    
| 2 | No, less than 3 months | 173 | 
                                                                 
                                    
                                    61.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3330 |