| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 8 | 
                                                                 
                                    
                                    8.5%
                                 
                                                             | 
                                                        
                    
| 2 | Weekly | 21 | 
                                                                 
                                    
                                    22.3%
                                 
                                                             | 
                                                        
                    
| 3 | Rarely | 65 | 
                                                                 
                                    
                                    69.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 10822 |