| Value | Category | Cases | |
|---|---|---|---|
| -3 | Missing | 1 | 
                                    
                                    0.1%
                                 | 
| -2 | Do not know | 1 | 
                                    
                                    0.1%
                                 | 
| -1 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 1 | at least five days a week | 39 | 
                                    
                                    4.4%
                                 | 
| 2 | at least once a month | 712 | 
                                    
                                    80%
                                 | 
| 3 | at least once a week | 34 | 
                                    
                                    3.8%
                                 | 
| 4 | at least once a year | 0 | 
                                    
                                    0%
                                 | 
| 5 | at least once in six months | 0 | 
                                    
                                    0%
                                 | 
| 6 | at least twice a month | 102 | 
                                    
                                    11.5%
                                 | 
| 99 | Other | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 109 |