| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 24 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    
| 2 | no | 378 | 
                                                                 
                                    
                                    94%
                                 
                                                             | 
                                                        
                    
| 77 | don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 4405 |