| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 20 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 26 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             | 
                                                        
                    
| 1 | Have done | 170 | 
                                                                 
                                    
                                    17%
                                 
                                                             | 
                                                        
                    
| 2 | Might do | 448 | 
                                                                 
                                    
                                    44.8%
                                 
                                                             | 
                                                        
                    
| 3 | Would never do | 336 | 
                                                                 
                                    
                                    33.6%
                                 
                                                             |