| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | yes | 31 | 22 | 
                                    
                                    2.2%
                                 | 
| 2 | no | 967 | 976 | 
                                    
                                    97.6%
                                 | 
| 3 | (dk) | 2 | 2 | 
                                    
                                    0.2%
                                 | 
| 4 | (ref) | 0 | 0 | 
                                    
                                    0%
                                 |