| Value | Category | Cases | |
|---|---|---|---|
| -3 | Missing | 0 | 
                                    
                                    0%
                                 | 
| -2 | Do not know | 0 | 
                                    
                                    0%
                                 | 
| -1 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 1 | at least five days a week | 4 | 
                                    
                                    2.7%
                                 | 
| 2 | at least once a month | 124 | 
                                    
                                    82.7%
                                 | 
| 3 | at least once a week | 7 | 
                                    
                                    4.7%
                                 | 
| 4 | at least once a year | 0 | 
                                    
                                    0%
                                 | 
| 5 | at least once in six months | 0 | 
                                    
                                    0%
                                 | 
| 6 | at least twice a month | 15 | 
                                    
                                    10%
                                 | 
| 99 | Other | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 849 |