| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1410 | 
                                                                 
                                    
                                    67%
                                 
                                                             | 
                                                        
                    |
| Often (every week) | 59 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| Rarely (once or twice) | 353 | 
                                                                 
                                    
                                    16.8%
                                 
                                                             | 
                                                        
                    |
| Sometimes (in some weeks but not every week) | 284 | 
                                                                 
                                    
                                    13.5%
                                 
                                                             |