| Value | Category | Cases | |
|---|---|---|---|
| -8 | Don’t know | 68 | 
                                    
                                    3.5%
                                 | 
| 1 | Yes | 629 | 
                                    
                                    32%
                                 | 
| 2 | No | 1022 | 
                                    
                                    52%
                                 | 
| 99 | NA | 248 | 
                                    
                                    12.6%
                                 |