| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1132 | 
                                    
                                    96.2%
                                 | 
| 2 | Once or twice | 7 | 
                                    
                                    0.6%
                                 | 
| 3 | A few times | 3 | 
                                    
                                    0.3%
                                 | 
| 4 | Often | 5 | 
                                    
                                    0.4%
                                 | 
| 5 | Don't know | 23 | 
                                    
                                    2%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 7 | 
                                    
                                    0.6%
                                 |