| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 281 | 
                                    
                                    5.7%
                                 | 
| 1 | yes | 4373 | 
                                    
                                    88.3%
                                 | 
| 2 | do not know | 299 | 
                                    
                                    6%
                                 | 
| Sysmiss | 5 |