| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0.No | 33 | 
                                
                                3.4%
                             | 
| 1 | 1.Yes | 22 | 
                                
                                2.2%
                             | 
| 5 | 5.Missing | 14 | 
                                
                                1.4%
                             | 
| 6 | 6.Other | 0 | 
                                
                                0%
                             | 
| 7 | 7.Refusal | 0 | 
                                
                                0%
                             | 
| 8 | 8.DK | 0 | 
                                
                                0%
                             | 
| 9 | 9.NA | 913 | 
                                
                                93%
                             |