| Value | Category | Cases | |
|---|---|---|---|
| 1 | no | 1141 | 
                                                                 
                                    
                                    46.3%
                                 
                                                             | 
                                                        
                    
| 2 | seldome | 186 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    
| 3 | sometimes | 852 | 
                                                                 
                                    
                                    34.6%
                                 
                                                             | 
                                                        
                    
| 4 | very often | 284 | 
                                                                 
                                    
                                    11.5%
                                 
                                                             |