| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | None | 954 | 
                                                                 
                                    
                                    79.6%
                                 
                                                             | 
                                                        
                    
| 1 | Few | 234 | 
                                                                 
                                    
                                    19.5%
                                 
                                                             | 
                                                        
                    
| 2 | Some | 8 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    
| 3 | Most | 2 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 4 | All | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |