| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3 | 
                                
                                0.1%
                             | 
| 1 | Yes | 5 | 
                                
                                0.2%
                             | 
| 2 | 1 | 
                                
                                0%
                             | |
| 3 | Not Sure | 349 | 
                                
                                12.7%
                             | 
| 5 | miss | 0 | 
                                
                                0%
                             | 
| 6 | Other | 0 | 
                                
                                0%
                             | 
| 7 | Refusal | 0 | 
                                
                                0%
                             | 
| 8 | dtk | 0 | 
                                
                                0%
                             | 
| 9 | na | 2400 | 
                                
                                87%
                             |