| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | No, would never do this | 52 | 
                                    
                                    4.3%
                                 | 
| 1 | No, but would do if had the chance | 318 | 
                                    
                                    26.5%
                                 | 
| 2 | Yes, once or twice | 93 | 
                                    
                                    7.8%
                                 | 
| 3 | Yes, several times | 355 | 
                                    
                                    29.6%
                                 | 
| 4 | Yes, often | 380 | 
                                    
                                    31.7%
                                 | 
| 9 | Don't know | 2 | 
                                    
                                    0.2%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 |