| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | No, would never do this | 161 | 
                                    
                                    13.4%
                                 | 
| 1 | No, but would do if had the chance | 316 | 
                                    
                                    26.3%
                                 | 
| 2 | Yes, once or twice | 173 | 
                                    
                                    14.4%
                                 | 
| 3 | Yes, several times | 213 | 
                                    
                                    17.8%
                                 | 
| 4 | Yes, often | 336 | 
                                    
                                    28%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 1 | 
                                    
                                    0.1%
                                 |