| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to respond | 0 | 
                                    
                                    0%
                                 | 
| -98 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 1563 | 
                                    
                                    49%
                                 | 
| 1 | Once | 485 | 
                                    
                                    15.2%
                                 | 
| 2 | 2-4 times | 886 | 
                                    
                                    27.8%
                                 | 
| 3 | 5-9 times | 151 | 
                                    
                                    4.7%
                                 | 
| 4 | About once a month on average | 35 | 
                                    
                                    1.1%
                                 | 
| 5 | About twice a month on average | 19 | 
                                    
                                    0.6%
                                 | 
| 6 | About once a week on average | 10 | 
                                    
                                    0.3%
                                 | 
| 7 | More than once a week | 42 | 
                                    
                                    1.3%
                                 | 
| Sysmiss | 6284 |