| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 862 | 
                                    
                                    71.8%
                                 | 
| 1 | Only once | 102 | 
                                    
                                    8.5%
                                 | 
| 2 | A few times | 147 | 
                                    
                                    12.3%
                                 | 
| 3 | Often | 87 | 
                                    
                                    7.3%
                                 | 
| 8 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | Don’t know | 1 | 
                                    
                                    0.1%
                                 |