| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | None | 676 | 
                                                                 
                                    
                                    56%
                                 
                                                             | 
                                                        
                    
| 1 | Few | 396 | 
                                                                 
                                    
                                    32.8%
                                 
                                                             | 
                                                        
                    
| 2 | Some | 110 | 
                                                                 
                                    
                                    9.1%
                                 
                                                             | 
                                                        
                    
| 3 | Most | 25 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    
| 4 | All | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             |