| Value | Category | Cases | |
|---|---|---|---|
| 0 | no card | 105 | 
                                    
                                    2.8%
                                 | 
| 1 | yes, seen | 2408 | 
                                    
                                    64.2%
                                 | 
| 2 | yes, not seen | 1004 | 
                                    
                                    26.8%
                                 | 
| 3 | no longer has card | 236 | 
                                    
                                    6.3%
                                 | 
| Sysmiss | 11193 |