| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 8 | 
                                    
                                    7%
                                 | 
| 2 | Monthly | 16 | 
                                    
                                    13.9%
                                 | 
| 3 | A few times a year | 27 | 
                                    
                                    23.5%
                                 | 
| 4 | Rarely | 38 | 
                                    
                                    33%
                                 | 
| 5 | Never | 26 | 
                                    
                                    22.6%
                                 | 
| Sysmiss | 28 |