| Value | Category | Cases | |
|---|---|---|---|
| 0 | no card | 620 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    
| 1 | yes, seen | 5073 | 
                                                                 
                                    
                                    64.9%
                                 
                                                             | 
                                                        
                    
| 2 | yes, not seen | 1850 | 
                                                                 
                                    
                                    23.7%
                                 
                                                             | 
                                                        
                    
| 3 | no longer has card | 268 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    
| 9 | 9 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 412 |