| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | No | 650 | 
                                    
                                    54.2%
                                 | 
| 1 | Yes, once or twice | 168 | 
                                    
                                    14%
                                 | 
| 2 | Yes, several times | 289 | 
                                    
                                    24.1%
                                 | 
| 3 | Yes, often | 93 | 
                                    
                                    7.8%
                                 | 
| 8 | Refused to answer | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 0 | 
                                    
                                    0%
                                 |