| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 14 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 18 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    
| 1 | Have done | 259 | 
                                                                 
                                    
                                    25.9%
                                 
                                                             | 
                                                        
                    
| 2 | Might do | 414 | 
                                                                 
                                    
                                    41.4%
                                 
                                                             | 
                                                        
                    
| 3 | Would never do | 295 | 
                                                                 
                                    
                                    29.5%
                                 
                                                             |