| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 18 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 23 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 1 | Have done | 102 | 
                                                                 
                                    
                                    10.2%
                                 
                                                             | 
                                                        
                    
| 2 | Might do | 306 | 
                                                                 
                                    
                                    30.6%
                                 
                                                             | 
                                                        
                    
| 3 | Would never do | 551 | 
                                                                 
                                    
                                    55.1%
                                 
                                                             |