| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 267 | 
                                    
                                    22.3%
                                 | 
| 1 | Just once or twice | 230 | 
                                    
                                    19.2%
                                 | 
| 2 | Several times | 352 | 
                                    
                                    29.3%
                                 | 
| 3 | Many times | 217 | 
                                    
                                    18.1%
                                 | 
| 4 | Always | 124 | 
                                    
                                    10.3%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't Know | 10 | 
                                    
                                    0.8%
                                 |