| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1 | 
                                
                                0%
                             | 
| 1 | Yes | 0 | 
                                
                                0%
                             | 
| 3 | Not Sure | 261 | 
                                
                                9.3%
                             | 
| 5 | miss | 0 | 
                                
                                0%
                             | 
| 6 | Other | 0 | 
                                
                                0%
                             | 
| 7 | Refusal | 0 | 
                                
                                0%
                             | 
| 8 | dtk | 0 | 
                                
                                0%
                             | 
| 9 | na | 2542 | 
                                
                                90.7%
                             |