| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | No, would never do this | 763 | 
                                    
                                    63.6%
                                 | 
| 1 | No, but would do if had the chance | 365 | 
                                    
                                    30.4%
                                 | 
| 2 | Yes, once or twice | 13 | 
                                    
                                    1.1%
                                 | 
| 3 | Yes, several times | 15 | 
                                    
                                    1.3%
                                 | 
| 4 | Yes, often | 20 | 
                                    
                                    1.7%
                                 | 
| 8 | Refused | 3 | 
                                    
                                    0.3%
                                 | 
| 9 | Don't know | 21 | 
                                    
                                    1.8%
                                 |